Let g(2x + 5) = 4x^2 - 3x + 2. Find g(-8).
We need to have
2x + 5 = -8
2x = -8 - 5
2x = -13
x = -13/2
So
g(-8) = 4(-13/2)^2 -3(-13/2) + 2 = 169 + 39 + 2 = 210
