Question

5. Ifx+1 is fnetor of polynomial 2x^2 + kx then the value of k is​

Answer 1

Answer:

$The \: root \: of \: x + 1 \:is \: - 1 \\ Let \: p(x) = 2 {x}^{2} + kx \\ p( - 1) = 0 \\ p( - 1) = 2 \times{ (- 1)}^{2} + k \times - 1 \\ 0 = 2</p><p> - k \\ k = 2$