Question

if a and b are the zeroes of the polynomial f(x)=x2+x-4 find the value of a3+b3​

Answer 1

Answer-0

Step-by-step explanation:

Firsty find the factors of

x^2+x-4

By Middle term Splitting

X^2+2x-2x-4

Taking common factor

x(x+2)-2(x+2)

(x-2)(x+2)

Thus two roots are

2 and -2

Let a=2 ans b=-2

a^3+b^3

2^3+(-2)^3

8-8

0

Thus answer is 0