Question

Alguien que me ayude??
3 (x+2) (x-2) = (x-4)² + 8x

Answer 1

3 ( x^2 - 2x + 2x - 4) = x^2 + 16 - 8x + 8x -->
3x^2 - 6x + 6x - 12 = x^2 + 16 -->
3x^2 - 12 = x^2 + 16 -->
2x^2 = 4 -->
x^2 = 2 -->
x = raíz de 2 -->
x = 2