Question

if -4 is a zero of the polynomial p(x)=x^2+11x+k, then find the value of k

Answer 1

Heya !!



P ( X ) = X² + 11X + K



P(-4) = (-4)² + 11 × -4 + K





=> 16 - 44 + K = 0




=> K - 28 = 0




=> K = 28

Answer 2

16-44+k
=-28+k
-28+k=0
k= +28