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Polynomials

Long Answer Type

431. If α, β are the zeroes of quadratic polynomial 2x² – 3x – 5, form a quadratic polynomial whose zeroes are α² and β².

397 Views

432. If α, β are the zeroes of quadratic poly-nomial x² – 3x + 2, form a quadratic polynomial whose roots are –α and –β.

161 Views

433. If α, β are the zeroes of quadratic polynomial x² – 3x – 1, form a quadratic polynomial whose roots are

1 over straight alpha squared comma space 1 over straight beta squared.

122 Views

434. Factorize 2x⁴ + x³ – 14x² – 19x – 6 by x² + 3x + 2 and verify the division algorithm.

163 Views

Short Answer Type

435. Find all the zeroes of the polynomial x³ + 3x² – 2x – 6, if two of its zeroes are –

<pre>uncaught exception: <b>mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56<br />#0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array) #1 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php(56): mkdir('/home/config_ad...', 493) #2 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/FolderTreeStorageAndCache.class.php(110): com_wiris_util_sys_Store->mkdirs() #3 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/RenderImpl.class.php(231): com_wiris_plugin_impl_FolderTreeStorageAndCache->codeDigest('mml=<math xmlns...') #4 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/TextServiceImpl.class.php(59): com_wiris_plugin_impl_RenderImpl->computeDigest(NULL, Array) #5 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/service.php(19): com_wiris_plugin_impl_TextServiceImpl->service('mathml2accessib...', Array) #6 {main}</pre>

1188 Views

436. Find all the zeroes of the polynomial 2a³ + x² – 6x – 3, if two of its zeroes are -

square root of 3 space and space square root of 3.

230 Views

437. If the polynomial 6x⁴+8x³ + 17x² + 21x + 7 is divided by another polynomial 3x²+ 4x +1, the remainder comes out to be (ax + b), find a and b.

2132 Views

438. If the polynomial x³ + 2x³ + 8x² + 12x + 18 is divided by another polynomial x² + 5, the remainder comes out to be px + q. Find the values of p and q.

211 Views

Long Answer Type

439. Find all the zeroes of 2x⁴ – 9x³ + 5x² + 3x– 1, if two of its zeroes are $2 plus square root of 3 space and space 2 minus square root of 3.$

Since, two zeroes are $2 plus square root of 3 space and space 2 minus square root of 3 comma$
∴ $left square bracket straight x minus left parenthesis 2 plus square root of 3 right parenthesis right square bracket space left square bracket straight x minus left parenthesis 2 minus square root of 3 right parenthesis right square bracket$
$equals left parenthesis straight x minus 2 minus square root of 3 right parenthesis space left parenthesis straight x minus 2 plus square root of 3 right parenthesis equals space left parenthesis straight x minus 2 right parenthesis squared minus left parenthesis square root of 3 right parenthesis squared equals space straight x squared minus 4 straight x plus 4 minus 3 space equals space straight x squared minus 4 straight x plus 1$
is a factor of the given polynomial. Let us now divide the given polynomial by
Since, two zeroes are ∴
Other two zeroes of f (x) are the zeroes of the polynomial
$2 straight x squared minus straight x minus 1 space equals space 2 straight x squared minus 2 straight x plus straight x minus 1 space space space space space space space space space space space space space space space space space space space equals space 2 straight x left parenthesis straight x minus 1 right parenthesis plus 1 left parenthesis straight x minus 1 right parenthesis space space space space space space space space space space space space space space space space space space space space equals space left parenthesis straight x minus 1 right parenthesis space left parenthesis 2 straight x plus 1 right parenthesis$
$rightwards double arrow$ Others two zeroes of $straight f left parenthesis straight x right parenthesis$ are 1 and $<pre>uncaught exception: mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56 #0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array) #1 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php(56): mkdir('/home/config_ad...', 493) #2 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/FolderTreeStorageAndCache.class.php(110): com_wiris_util_sys_Store->mkdirs() #3 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/RenderImpl.class.php(231): com_wiris_plugin_impl_FolderTreeStorageAndCache->codeDigest('mml=<math xmlns...') #4 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/TextServiceImpl.class.php(59): com_wiris_plugin_impl_RenderImpl->computeDigest(NULL, Array) #5 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/service.php(19): com_wiris_plugin_impl_TextServiceImpl->service('mathml2accessib...', Array) #6 {main}</pre>$
So, its zeroes are given by x = -5 and $space space space space straight x equals 3 over 2$
Hence, all the zeroes of the given polynomial
are $<pre>uncaught exception: mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56 #0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array) #1 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php(56): mkdir('/home/config_ad...', 493) #2 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/FolderTreeStorageAndCache.class.php(110): com_wiris_util_sys_Store->mkdirs() #3 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/RenderImpl.class.php(231): com_wiris_plugin_impl_FolderTreeStorageAndCache->codeDigest('mml=<math xmlns...') #4 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/TextServiceImpl.class.php(59): com_wiris_plugin_impl_RenderImpl->computeDigest(NULL, Array) #5 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/service.php(19): com_wiris_plugin_impl_TextServiceImpl->service('mathml2accessib...', Array) #6 {main}</pre>$
Ans.