Question

решите уравнение (2x+1)^2-(2x-2)(2x+2)= 38

Answer 1

4x^2 + 4x + 1 - (4x^2 - 4) = 38
4x^2 + 4x + 1 - 4x^2 + 4 =  38
4x + 5 = 38
4x = 33
x = 8,25