\(f(x)=g(x)\)
The problem already gives us the respective expressions for these 2 functions. We can rewrite this as:
-2x = x2-3
Adding 2x on both sides, get :
0 = x2+2x-3
we can factor this into:
(x+3) * (x-1) = 0
Our roots for this quadratic are then:
x = -3
x = 1