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- Oct 14th 2007, 06:59 AMtimcHELP !! on Indices and Logarithms
Sorry Posted In The Worng Section Delete Please

- Oct 14th 2007, 07:10 AMSoroban
Hello, Tim!

I assume those are exponents (indices) . . .

Quote:

Q1. Manipulate the following expressions and simplify them using the laws of indices.

$\displaystyle a)\;\;x^2y^{-5}\:=\:x^4y^3$

We have: .$\displaystyle x^2y^{-5} \;=\;x^4y^3$

Divide both sides by $\displaystyle x^2\!:\;\;y^{-5} \;=\;x^2y^3$

Multiply both sides by $\displaystyle y^5\!:\;\;1 \;=\;x^2y^8$

So we have: .$\displaystyle x^2y^8 \;=\;1$

. . I suppose that's "simplified" . . .