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Answer to Question #19831 in Trigonometry for Kate

Question #19831
4^(x^2+4x)=2^-6
Expert's answer
4^(x^2+4x)=2^-6
2^(-6)=4^(-3)
so 4^(x^2+4x)=4^(-3)
then x^2+4x=-3
x1=-1, x2=-3

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