Question

if A and B are zeros of the polynomial X2 + X - 12 then find the value of a3 + b3

Answer 1

Answer:

X2+4x-3x-12=0

X(x+4)-3(x+4)=0

(x-3) (x+4) =0

X-3=0 & x-4=0

X=3 & x =4

Where 3 and 4 are the zero of polynomial

(3)3 + (4)3

(3*3*3)+(4*4*4)

27+64

91 is the answer