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April 23, 2014

Homework Help: math

Posted by Alyssa Pacheco on Sunday, March 14, 2010 at 10:56pm.

Theses are just some problems i did not understand how to do so if you could please explain and write the answer(:
anything helps
thank you(:

2. Simplify
---(3x^11z^5)^3
b. (3x^5)^ -3 / 2x-5(3y)^4
c.3x^5)^ -3 / 2x ^ -5(3y)^4 (same as b but - 5 is the exponent)

3a.x^2 / 5 + x-5 / 6=0 (proportion, and then i got to the quadratic equation and after i did that i got 5/3 and -2.5 correct?)
3b.18=2(3)^x+3 (x+3 are exponents)
c. 128=4^3x (whats x)

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