Having some problems with simplifying these 2 equations. Can anyone help me? Thanks ... 1. (x+y)^-1 + (x-y)^-1 2. (27x^2)^1/3 / 1/3(x^3)^1/2 Thanks again.
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Originally Posted by slippy1 Having some problems with simplifying these 2 equations. Can anyone help me? Thanks ... 1. (x+y)^-1 + (x-y)^-1 2. (27x^2)^1/3 / 1/3(x^3)^1/2 Thanks again. Q1: Make the denominators the same, and simplify the numerator. Q2: Multiply the powers into the brackets and then simplify.
Originally Posted by knighty Q1: Make the denominators the same, and simplify the numerator. Q2: Multiply the powers into the brackets and then simplify. Just to expand slightly on what's been said for Q1, first note that $\displaystyle (x + y)^{-1} + (x - y)^{-1} = \frac{1}{x + y} + \frac{1}{x - y}$.
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