展开 (12s-24)/((s^2-4s+85)^2)

解答

展开

\frac{12 s - 24}{( s ^{2} - 4 s + 85 ) ^{2}}

\frac{12 s - 24}{s ^{4} - 8 s ^{3} + 186 s ^{2} - 680 s + 7225}

求解步骤

\frac{12 s - 24}{( s ^{2} - 4 s + 85 ) ^{2}}

(s^{2} - 4 s + 85)^{2} = s^{4} - 8 s^{3} + 186 s^{2} - 680 s + 7225

= \frac{12 s - 24}{s ^{4} - 8 s ^{3} + 186 s ^{2} - 680 s + 7225}

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