If p(x) = 3x - 7, then p(x) + p(-x) is:
  • 7

  • 6x

  • 0

  • 0


D.

0

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Is x = 1 a zero of polynomial x3– a2 – x + 1 ?


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#6 {main}</pre>
At straight x equals 1 comma  the value of p(x) is
       straight P left parenthesis 1 right parenthesis space equals space 1 cubed minus 1 squared minus 1 plus 1
space space space space space space space space space equals space 1 minus 1 minus 1 plus 1
space space space space space space space space space equals space 2 space minus 2 space equals 0
Hence, x = 1 is a zero of polynomial x3 – a2 - x + 1.

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The remainder when x2 + 2x + 1 is divided by (x + 1) is:
  • 4

  • 0

  • 1

  • 1


B.

0

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Degree of the polynomial 4x4 + 0x3 + 0x5 + 5x + 7 is:
  • 7

  • 5

  • 4

  • 4


C.

4

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If the area of a rectangle is 4x2 + 4x - 3, then its possible dimensions are:
  • 2x - 3, 2x + 1
  • 2x - 1, 2x + 3
  • 3x + 1, 2x - 3
  • 3x + 1, 2x - 3

B.

2x - 1, 2x + 3
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