1.di ketahui f(x)=2x-1 dan g(x)=4x+p jika (fog)(x)=(gof)(x) maka nilai p=.... A.-3 B.-2 C.-1 D.1 E.2

Question

Matematika Diposting : 2017-03-29 Diupdate : 2023-11-25 dendy07

Pertanyaan

1.di ketahui f(x)=2x-1 dan g(x)=4x+p jika (fog)(x)=(gof)(x) maka nilai p=....
A.-3
B.-2
C.-1
D.1
E.2

Answer 1

2(4x+p) - 1 = 4(2x-1) + p
8x + 2p - 1 = 8x - 4 + p
2p - p = -4 + 1
p = -3