Hi everyone.

I know this may seem a little basic for university study, but we are currently doing revison and i'm stuck on this question

Simplify the expression 3^x+y-15^y/3^y-2

Printable View

- Mar 10th 2010, 02:41 AMtim_mannireIndicies
Hi everyone.

I know this may seem a little basic for university study, but we are currently doing revison and i'm stuck on this question

Simplify the expression 3^x+y-15^y/3^y-2 - Mar 10th 2010, 06:25 AMSudharaka
- Mar 10th 2010, 11:30 AMtim_mannire
yes, but it is 3 to the power of 3^(x+y)

- Mar 10th 2010, 11:36 AMicemanfan
About the only thing I can think of is this:

$\displaystyle \frac{3^{x+y} - 15^y}{3^y - 2} = \frac{3^y(3^x - 5^y)}{3^y - 2}$