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OpenStudy (anonymous):
Solve the exponential equation 3^x^2+5x=1/81
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OpenStudy (anonymous):
\[\large 3^{x^2+5x}=\frac{1}{81}\] right?
OpenStudy (anonymous):
right
OpenStudy (anonymous):
since \(3^{-4}=\frac{1}{3^3}=\frac{1}{81}\) you know that \[x^2+5x=-4\] solve that quadratic
OpenStudy (anonymous):
more explain plz
OpenStudy (anonymous):
(x-5)(x+1) x=5 x=-1
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