Răspuns :
x²+2x+1+9x²-6x+1=x²-6x+9+9x² +24x +16
2x+2=9+24x+16
2x+2=24x+25
-23=22x
x=-23/22∈R
2x+2=9+24x+16
2x+2=24x+25
-23=22x
x=-23/22∈R
(X+1)²+(3x-1)²=(x-3)²+(3x+4)²
X²+2x+1+9x²-6x+1=x²-6x+9+9x²+24x+16
10x²-4x+2=10x²+18x+25
10x²-10x²-4x-18x=25-2
-22x=23
X=-23/22
X²+2x+1+9x²-6x+1=x²-6x+9+9x²+24x+16
10x²-4x+2=10x²+18x+25
10x²-10x²-4x-18x=25-2
-22x=23
X=-23/22