Question

How do you write this quadratic equation using substitution

Answer 1

Idk because it hard

Answer 2

u^2 +7u -8=0 where u = 3x+2

Explanation:

(3x+2)^2 + 7(3x+2) - 8=0

Let 3x+2 = u

u^2 +7u -8=0