Question

if one zero of quadratic polynomial x2-x-(2+2k) is -4 find the vakue of k

Answer 1

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Answer 2

Hey Friend ☺

☆ QUADRATIC EQUATIONS ☆

- 4 is zero the polynomial x^2 - x - ( 2 + 2k )

Let p ( x ) = x^2 - x - 2 ( 2 + 2k )

So p ( - 4 ) = 0

p ( - 4 ) = x^2 - x - ( 2 + 2k )

》0 = ( - 4 )^2 - ( - 4 ) - 2 - 2k

》0 = 16 + 4 - 2 - 2k

》2k = 18

》K = 18/2

》k = 9

So the value of the k is 9

Hope it helps you ..!!

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