Question

if -3 in a zero polynomial minus 2 x square + 11 x + a find the value of a​

Answer 1

Answer:

Given,

p(x) = -3

p(-3) = 0

2*(-3)*(-3) + 11*(-3) + a = 0

2* 9 - 33 +a = 0

18 - 33 + a = 0

- 15 + a = 0

a = 15