Question

(x-3)^{2} +2(x-5)(x+5)=3 (x+1)^{2} +4

^{2}-la puterea 2

Answer 1

(x^2-6x+9)+2(x^2-25)=3(x^2+10x+25)+4
x^2-6x+9+2x^2-50=3x^2+30x+75+4
x^2+2x^2-3x^2-6x-30x=30+75+4+50-9
-6x-30x=30+75+4+50-9
-36x=150
x= 150/-36

Answer 2

(x^2-6x+9)+2(x^2-25)=3(x^2+10x+25)+4
x^2-6x+9+2x^2-50=3x^2+30x+75+4
x^2+2x^2-3x^2-6x-30x=30+75+4+50-9
-6x-30x=30+75+4+50-9
-36x=150
x= 150/-36