Question

(x-1) (x+2) = (x+2) (x-2), find x​

Answer 1

Answer:

(x-1) (x+2) = (x+2) (x-2)

x²+2x-x-2 = x²-2x+2x-4

x²+x-2 = x²-4

x²+x-x² = -4+2

x = -2