5^-2x times 5^x+2 = 5^-2x

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

3 0

$5^{-2x}\cdot5^{x+2}=5^{-2x}\\
5^{x+2}=1\\
x+2=0\\
x=-2
$

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