Question

If f(x) = -8x2 + 3x + 1 and g(x) = x + 1, find (f + g) (x).

Answer 1

f(x)= -8x²+3x+1

g(x)=x+1

(f+g)x=>f(x) + g(x) = -8x²+3x+1+x+1=-8x²+4x+2

hence,(f+g)x=-8x²+4x+2