展开 (35h)/((t+7)(t+h+7))

解答

展开

\frac{35 h}{( t + 7 ) ( t + h + 7 )}

\frac{35 h}{t ^{2} + h t + 14 t + 7 h + 49}

求解步骤

\frac{35 h}{( t + 7 ) ( t + h + 7 )}

乘开

(t + 7) (t + h + 7) : t^{2} + h t + 14 t + 7 h + 49

= \frac{35 h}{t ^{2} + h t + 14 t + 7 h + 49}

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