2x^2-(x-1)^2=13^2

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Solution for 2x^2-(x-1)^2=13^2 equation: 



2x^2-(x-1)^2=13^2

We move all terms to the left:

2x^2-(x-1)^2-(13^2)=0

We add all the numbers together, and all the variables

2x^2-(x-1)^2-169=0

We move all terms containing x to the left, all other terms to the right

2x^2-(x-1)^2=169

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