Question

решите уравнение (3x+2)²+(4x-1)(4x+1)=(5x-1)²

Answer 1

9x^2 + 12x + 4 + 16x^2 - 1 = 25x^2 - 10x + 1 
25x^2 + 12x + 3 = 25x^2 - 10x + 1
12x + 3 = - 10x + 1 
12x + 10x = 1 - 3 
22x = - 2
x = - 2/22 = - 1/11