Question

PLEASE BANTU JAWAB JAWABAN SGT MEMBUTUHKA. PAKAI CARA YG JELAS DAN LENGKAP POINT 12+JAWABAN TERBAIK

Answer 1

A. (g o f)(x) = g(f(x))
= g(2x + 3)
= 4 - 5(2x + 3)
= 4 - 10x - 15
= -10x - 11

b. (f o g)(x) = f(g(x))
= f(4 - 5x)
= 2(4 - 5x) + 3
= 8 - 10x + 3
= -10x + 11

c. (g o f)(-1) = -10 (-1) - 11
= 10 - 11
= -1

d. (f o g)(a) = 21
-10a + 11 = 21
-10a = 10
a = -1