What is expand (0.3e^{-t}+0.4+0.3e^t)^2 ?

The solution to expand (0.3e^{-t}+0.4+0.3e^t)^2 is 0.24e^t+0.09e^{-2t}+0.09e^{2t}+0.24e^{-t}+0.34

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expand (0.3e^{-t}+0.4+0.3e^t)^2

expand

(0.3 e^{- t} + 0.4 + 0.3 e^{t})^{2}

0.24 e^{t} + 0.09 e^{- 2 t} + 0.09 e^{2 t} + 0.24 e^{- t} + 0.34

Solution steps

(0.3 e^{- t} + 0.4 + 0.3 e^{t})^{2}

(0.3 e^{- t} + 0.4 + 0.3 e^{t})^{2} = (0.3 e^{- t} + 0.4 + 0.3 e^{t}) (0.3 e^{- t} + 0.4 + 0.3 e^{t})

= (0.3 e^{t} + 0.3 e^{- t} + 0.4) (0.3 e^{t} + 0.3 e^{- t} + 0.4)

Expand

(0.3 e^{- t} + 0.4 + 0.3 e^{t}) (0.3 e^{- t} + 0.4 + 0.3 e^{t}) : 0.24 e^{t} + 0.09 e^{- 2 t} + 0.09 e^{2 t} + 0.24 e^{- t} + 0.34

= 0.24 e^{t} + 0.09 e^{- 2 t} + 0.09 e^{2 t} + 0.24 e^{- t} + 0.34

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What is expand (0.3e^{-t}+0.4+0.3e^t)^2 ?
The solution to expand (0.3e^{-t}+0.4+0.3e^t)^2 is 0.24e^t+0.09e^{-2t}+0.09e^{2t}+0.24e^{-t}+0.34