Question

Diketahui f(x)=2x-1 dan g(x)=x^2 fungsi (f+g)(x^2)=

Answer 1

(f+g)(x) = 2x-1+x² = x²+2x-1
(f+g)(x²) = (x²)²+2(x²)-1
= x⁴+2x²-1