di ketahui f(x): 3x+5,g(x):2x-7,tntukan (g0f(-2))

(gof)(x)= g f(x)
g (3x+5)
2(3x+5)-7
6x+10-7
6x+3
(gof)(-2)= 6x+3
= 6(-2)+3
=-12+3
=-9