x(x+2)-(x-3)²=7
x²+2x-(x²-6x+9)=7
x²+2x-x²+6x-9=7
8x=7+9
8x=16
x=2
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x(x+2)-(x-3)²=7
x²+2x-(x²-6x+9)=7
x²+2x-x²+6x-9=7
8x=7+9
8x=16
x=2