Question

For what value of k is, -2 a zero of the polynomial 3x²+4x +2k?

Answer 1

Answer:

For what value of k is, -2 a zero of the polynomial 3x²+4x +2k?

The correct answer is 3x^2 +4x - 4

Answer 2

Answer:

Given polynomial

$3 {x}^{2} + 4x + 2k = 0$

putting the value of x = -2

we get

$3 \times { - 2}^{2} + 4 \times ( - 2) + 2k = 0 \\ 12 + ( - 8) + 2k = 0 \\ 2k = - 4 \\ k - 2$

hope it helps you ✅✅✅