The two zeroes of a quadratic polynomial are -4 and -6 find the sum an – InterviewSolution

1.

The two zeroes of a quadratic polynomial are -4 and -6 find the sum and product of zeroes . what is the valueof coefficient b?

Answer»

B = 10

Step-by-step explanation:

$x_{1}$ + $x_{2}$ = - $\frac{b}{a}$ ==> - b = - (4 + 6) and a = 1; b = 10

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If $x_{1}$ and $x_{2}$ are root of QUADRATIC equation ax² + bx + C = 0,

then ax² + bx + c = a(X - $x_{1}$ )(x - $x_{2}$ )

(x + 4)(x + 6) = x² + 10x + 24

b = 10

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