x × x -(x-8) × (x-5)= 415

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x × x -(x-8) × (x-5)= 415

x × x -(x-8) × (x-5)= 415
x × x -(x-8) × (x-5)= 415

x × x -(x-8) × (x-5)= 415
X=35