Precalculus
posted by Anonymous on .
1. Write the given expression as a single logarithm.
log(70x)+log(10y)2
2. Simplify the expression. (Do not use mixed numbers in your answer.)
(5x^7/8)(2y^4/6)(x^9/8)(4y^2/6)
3. Write the given expression as a single logarithm.
2Ln(x)+Ln(4y)Ln(5z)
4. Simplify the expression. Assume that all letters represent positive real numbers. (Enter each exponent as an integer or a fraction.)
√ab ∛(ab^4)/√a(∛b)^4

another student 'anonymous' had this question,
http://www.jiskha.com/display.cgi?id=1289067581
looks very similar to yours.