x²-2x=2x+1

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x²-2x=2x+1x²-2x=2x+1x²-2x=2x+1x²-2x=2x+1x²-4x-1=0x=(4±2根号2）/2x=2±根号2

x²-2x=2x+1
x²-2x=2x+1

x²-2x=2x+1
x²-2x=2x+1
x²-4x-1=0
x=(4±2根号2）/2
x=2±根号2