Factor
63x^{4}y^{8}\left(6x^{4}y^{7}+1\right)
Evaluate
378x^{8}y^{15}+63x^{4}y^{8}
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63\left(x^{4}y^{8}+6x^{8}y^{15}\right)
Factor out 63.
x^{4}y^{8}\left(1+6x^{4}y^{7}\right)
Consider x^{4}y^{8}+6x^{8}y^{15}. Factor out x^{4}y^{8}.
63x^{4}y^{8}\left(1+6x^{4}y^{7}\right)
Rewrite the complete factored expression.
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