anonymous 3 years ago help

1. anonymous

2. anonymous

You need to find 2 numbers whose product totals 128. One of the numbers needs to be a perfect square so we can simplify it.

3. anonymous

I ways like to divide it by 2 first to see if 2 and the other number will work. Good place to start

4. anonymous

2 times 64 = 128, Hey look.. 64 is a perfect square!!

5. anonymous

$\sqrt{128}=\sqrt{2 \times 64}=\sqrt{2}\sqrt{64}=8\sqrt{2}$