Question

(×+2)=(×-4)в квадрате

Answer 1

*х+2=(х-4)^2
х+2= x^2-8x+16
x+2-x^2+8x-16=0
x^2-9x+14=0
D=81-4*1*14=81-56=25
x=$frac{9+-5}{2}$
x1= 7
x2=2