Evaluate
\left(3x^{5}-\sqrt{e+\pi }\right)^{7}
Expand
2187x^{35}-5103\sqrt{e+\pi }x^{30}+5103ex^{25}+5103\pi x^{25}-2835\left(e+\pi \right)^{\frac{3}{2}}x^{20}+1890e\pi x^{15}+945e^{2}x^{15}+945\pi ^{2}x^{15}-189\left(e+\pi \right)^{\frac{5}{2}}x^{10}+63e\pi ^{2}x^{5}+63\pi e^{2}x^{5}+21e^{3}x^{5}+21\pi ^{3}x^{5}-\left(e+\pi \right)^{\frac{7}{2}}
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