化简-(28735)/((x-42.8)^2)+(0.0000072)/(x^3)

解答

化简

- \frac{28735}{( x - 42.8 ) ^{2}} + \frac{0.0000072}{x ^{3}}

- \frac{28735}{( x - 42.8 ) ^{2}} + \frac{9}{1250000 x ^{3}}

求解步骤

- \frac{28735}{( x - 42.8 ) ^{2}} + \frac{0.0000072}{x ^{3}}

化简

\frac{0.0000072}{x ^{3}} : \frac{72}{10000000 x ^{3}}

= - \frac{28735}{( x - 42.8 ) ^{2}} + \frac{72}{10000000 x ^{3}}

消掉

\frac{72}{10000000 x ^{3}} : \frac{9}{1250000 x ^{3}}

= - \frac{28735}{( x - 42.8 ) ^{2}} + \frac{9}{1250000 x ^{3}}

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