(4-х)^2+(х-3)^2=2x^2-3
(4-x)²+(x-3)²=2x²-3 16-8x+x²+x²-6x+9=2x²-3 16-8x+x²+x²-6x+9-2x²+3=0 28-14x=0 14x=28 x=2