(х+5)^2-(х-1)^2=48 решите уравнение

Question

(х+5)^2-(х-1)^2=48 решите уравнение

Answer 1

X^2 + 10x + 25 - (x^2 - 2x + 1) = 48
x^2 + 10x + 25 - x^2 + 2x - 1 - 48 = 0
10x + 25 + 2x - 49 = 0
12x - 24 =  0
12x = 24
x = 2