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Quadratic Equations

Short Answer Type

331. Two years ago a man's age was three times the square of his son's age. Three years hence his age will be four times his son's age. Find their present ages.

108 Views

Multiple Choice Questions

332.

If D > 0 then roots of a quadratic equation ax² + bx + c = 0 are

$fraction numerator negative straight b plus-or-minus square root of straight D over denominator 2 straight a end fraction$
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140 Views

333. Discriminant of x² + 5x + 5 = 0 is

$5 over 2$
–5
5
5

99 Views

334. For what values of ‘P’ the equation Px² + 4a: + 1 = 0 has real roots:
P ≤ 4
P ≤ 5
P ≤ – 4
P ≤ – 4

P ≤ 4

185 Views

335. What is the nature of roots of quadratic equation 9x² – 12x + 4 = 0?

Real
equal
unequal
unequal

125 Views

336. The solutions of 2x² – 5x + 3 = 0 are

$3 over 2 comma space minus 1$
$negative 3 over 2 comma space minus 1$
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