Question

решить уравнение (х-8)^2=(6-х)^2

Answer 1

(х-8)^2=(6-х)^2
х^2-16x+64=36-12x+x^2
-16x+12x=36-64
-4x=-28
x=7

Answer 2

(х-8)^2= х^2+2*8*х+8^2

Answer 3

..2*8*х=16х

Answer 4

8^2=64