(4-x)^2+(x-3)^2=2x^2+4

Question

(4-x)^2+(x-3)^2=2x^2+4

Answer 1

16-8х+х^2+х^2-6х+9=2х^2+4
2х^2-14х+25=2х^2+4
2х^2-2х^2-14х+25-4=0
-14х+21=0
-14х=21
х=21:(-4)
х=1,5

Comments

ой -14х=-21 ; х=-21:(-14). х=1,5