Question

решите уравнение (х+3)^2=(х-5)^2

Answer 1

x^2+6x+9-x^2+10x-25=0
16x=16
x=1

Answer 2

x^2+6x+9=x^2-10x+25
x^2+6x+9-x^2+10-25+0
16x-16=0
16x=16
x=16:16
x=1