Question

Bagaimana cara menyelesaikan fungsi komposisi seperti ini?
mohon bantuannya segera

Answer 1

Verified answer

Jawb

cari dulu gof(x) 
gof(x) = g { f(x)} 
= g {2x-2}
= (2x-2)² - 1
=  4x² - 8x + 4 - 1
= 4x ² - 8x + 3

gof(x+1) = 4 (x +1)² - 8(x + 1) + 3
= 4(x² + 2x + 1) - 8x - 8 + 3
= 4x² +8x + 4 - 8x - 8 + 3
= 4x² + 7