Question

Jika f(x)=2x²-2x+14 dan g(x)=x²+x . tentukan (f°g)(x)

Answer 1

Verified answer

Fungsi

fog(x) = f{g(x)}
= f{x² +x)
= 2(x² +x)² - 2(x² + x) + 14
= 2(x⁴ + 2x³ + x²)  - 2x² - 2x + 14
= 2x⁴ + 4x³ + 2x² - 2x² - 2x + 14
= 2x⁴ + 4x³ - 2x + 14