Question

If -1, -2. are two zeros of a polynomial
2x3 + ax + bx - 2, then (a, b) =​

Answer 1

Step-by-step explanation:

$2 {x}^{3} + ax + bx - 2 = 0 \\ \\ \pink{x = - 1} \\ \\ 2 {( - 1)}^{3} - a - 2 = 0 \\ \\ - 2 - a - 2 = 0 \\ \\ a = - 4$

l hope you understand this