Question

Решите уравнение (x+1)^2=(x-2)^2

Answer 1

x2+2x=2x-4;
2x-2x+x2=-4
x2=-4
x=2

Answer 2

x^2+ 2x+1= x^2-4x+4
x^2+2x-x^2+4x+4
2x+ 4x= 4-1
6x=3
x=3:6
x=0,5