展开 2(e^{-5t}-e^t)

解答

展开

2 (e^{- 5 t} - e^{t})

2 e^{- 5 t} - 2 e^{t}

求解步骤

2 (e^{- 5 t} - e^{t})

使用分配律:

a (b - c) = ab - a c

a = 2, b = e^{- 5 t}, c = e^{t}

= 2 e^{- 5 t} - 2 e^{t}

e x p an d 0.3 (12 + (- 16) = 0.4 (12 - 3 t))

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e x p an d 2 (x^{2} + 5 x + 2)^{3}

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