Question

2 . If one zero of the quadratic polynomial x^2 + 3x + k is 2 , then the value of k is :
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Answer 1

Answer:

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Answer 2

Zero of the polynomial is 2,

$p(2) = {2}^{2} + 3(2) + k = 0$

$4 + 6 + k = 0$

$10 + k = 0$

$k = - 10$