Question

For what value of k (-4) is the zero of the polynomial x2-x-(2k+2)?

Answer 1

Question :-

For what value of k, (-4) is the zero of the polynomial x² - x - (2k + 2) ?

Answer :-

k = 9

Step by step explaination :-

we are given, (-4) as the zero of the polynomial.

• Therefore, x = -4

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substituting value of x in the polynomial,

x² - x - (2k + 2)

4² - (-4) - (2k + 2) = 0

16 + 4 - 2k - 2 = 0

20 - 2 - 2k = 0

18 - 2k = 0

18 = 2k

k = 18/2

k = 9

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Answer 2

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