maths

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hi, i would really appreciate some help on simplifying this question:
-2(3e^-x-e^x)(-3e^-x-e^x)

could this be simplified as
-2(3e^-x-e^x)-(3e^-x-e^x)
which would then become
(-2-1)(3e^-x-e^x)

i feel this isn't right however...

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