Question

Решить уравнение:
(2x-3)(2x+3)-(2x-1)^2=0

Answer 1

4x^2 -9 - 4x^2 -1 = -9 -1 = -10

Answer 2

4x^2 - 9 - (4x^2-4x+1)=0
4x^2 - 9 - 4x^2 + 4x - 1 = 0
4x=10; x=10/4=2,5