Answer:
9+10x
Explanation:
Given: g(x)= -3x2 + 5x = -6+5x
and h(x) = 2x +1
Find: g(h(x+1))
1!
h(x+1)= 2(x+1) +1
=2x+3
2! substitute h(x+1)in function g(x)
g(h(x+1))= -6 + 5(2x+3)
= -6+10x+15
= 9+10x
ps. im not sure (-3x2 + 5x) is -6+5x (-3 multiply 2) or question is not clear