Hi, Pretty basic question. Can some look at the question I've attached and explain why when I'm simplifying (2a+1/b)^-2 it changes to (2ab+1/b)^-2
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Originally Posted by JVP Hi, Pretty basic question. Can some look at the question I've attached and explain why when I'm simplifying (2a+1/b)^-2 it changes to (2ab+1/b)^-2 $\displaystyle (2a+\frac{1}{b})^{-2}=(\frac{2ab}{b}+\frac{1}{b})^{-2}$ When you group them into one fraction .
How does 2a become 2ab
Originally Posted by JVP How does 2a become 2ab $\displaystyle 2a+\frac{1}{b}=\frac{2a}{1}+\frac{1}{b}=\frac{2a(b )}{1(b)}+\frac{1}{b}$
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