x²-6x+9=(5-x)²
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x²-6x+9=(5-x)²
x²-6x+9=(5-x)²
x²-6x+9=(5-x)²
x²-6x+9=(5-x)²=25-10x+x^2
4x=16
x=4
x²-6x+9=(5-x)²
(x-3)²-(x-5)²=0
((x-3)+(x-5)) * ((x-3)-(x-5))=0
2(2x-8)=0
x=4
x²-6x+9=(5-x)²
x²-6x+9=25-10x+x²
10x-6x=25-9
4x=16
x=4