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Assuming the expression you want to solve is: x^2 + 10x + 25 = 81

Subtract both sides by 81: x^2 + 10x - 56=0

First, check for factors of 56 whose difference is 10: 2 and 28, no, 4 and 14, yes.

So factor the expression as: (x+14)(x-4)=0

Thus the solutions to the expression are either x=4 or x=-14.

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Q: X squared plus 10x plus 25 equals 81?
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