Question

(X+2)в квадрате=(Х-4)в квадрате

Answer 1

(х+2)²=(х-4)²
х²+4х+4=х²-8х+16
х²+4х+4-х²+8х-16=0
12х-12=0
12х=12
х=1

Answer 2

( X + 2 )^2 = ( X - 4 )^2
X^2 + 4x + 4 = x^2 - 8x + 16
X^2 - x^2 + 4x + 8x = 16 - 4
12x = 12
X = 1