Sagot :
Answer:
1. (g o f) (x) = g[f(x)]
= g[x-2]
= 2(x-2)²+3(x-2)+4
= 2(x²-4x+4)+3(x-2)+4
= 2x²-8x+8+3x-6+4
= 2x²-5x+8-6+4
= 2x²-5x+6
Find and simplify
1. (g o f) (x) = g[f(x)]
= g[2x+1]
= (2x+1)-1
= 2x+1-1
= 2x
2. (h o g) (x) = h[g(x)]
= h[x-1]
= (x-1)²-2(x-1)+2
= x²-2x+1-2x+2+2
= x²-4x+1+2+2
= x²-4x+5