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August 2, 2015

Homework Help: Algebra-please check my answers

Posted by Ang on Friday, October 26, 2007 at 10:20pm.

Solve the equation by expressing each side as a power of the same base and then equating exponents.

9^(x - 9)/8= sqrt of 9
i got 13


4^(x + 10) = 8^(x - 6)
i got 38

Solve the exponential equation. Express the solution set in terms of natural logarithms.

2^8x = 4.5
i got {ln 4.5/8 ln 2}


Solve the exponential equation. Express the solution set in terms of natural logarithms.

4^(x + 4) = 5^(2x + 5)-This question I dont understand.

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