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x=85
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x≔85
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x=\sqrt{7056+13^{2}}
Calculate 84 to the power of 2 and get 7056.
x=\sqrt{7056+169}
Calculate 13 to the power of 2 and get 169.
x=\sqrt{7225}
Add 7056 and 169 to get 7225.
x=85
Calculate the square root of 7225 and get 85.
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