What is expand 1-e^{-2t}(2-e^{-t}) ?

The solution to expand 1-e^{-2t}(2-e^{-t}) is 1-2e^{-2t}+e^{-3t}

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expand 1-e^{-2t}(2-e^{-t})

expand

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

1 - 2 e^{- 2 t} + e^{- 3 t}

Solution steps

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

Expand

- e^{- 2 t} (2 - e^{- t}) : - 2 e^{- 2 t} + e^{- 3 t}

= 1 - 2 e^{- 2 t} + e^{- 3 t}

\frac{d ^{2}}{d x d y} ((z (x, y)) (x^{6} - 5 x^{4} y^{3} + 4 x y^{2}))

213 \cdot 4

\frac{3}{( s + 2 ) ( s - 6 )}

(50 - 1)^{2}

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

What is expand 1-e^{-2t}(2-e^{-t}) ?
The solution to expand 1-e^{-2t}(2-e^{-t}) is 1-2e^{-2t}+e^{-3t}