Factor
x^{2}+7
Evaluate
x^{2}+7
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\frac{9x^{2}+63}{9}
Factor out \frac{1}{9}.
9x^{2}+63
Consider 9x^{2}-17+80. Multiply and combine like terms.
9\left(x^{2}+7\right)
Consider 9x^{2}+63. Factor out 9.
x^{2}+7
Rewrite the complete factored expression.
x^{2}+7
Add -\frac{17}{9} and \frac{80}{9} to get 7.
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