Решите уравнение (х+10)²+(х+6)²= 2х²

х²+20х+100+х²+12х+36=2х²
2х²+32х+136=2х²
32х=-136
х=-4.25

( X + 10 )^2 + ( X + 6 )^2 = 2x^2
X^2 + 20x + 100 + x^2 + 12x + 36 = 2x^2
2x^2 + 32x + 136 = 2x^2
32x = - 136
X = - 4,25