## anonymous 5 years ago simplfiy square root of 98a^17

1. anonymous

i know it breaks down to 49 times 2a^16 times a but then i get lost

2. anonymous

$7\sqrt{2}\times \sqrt{a ^{17}}$

3. myininaya

17/2=8.5 so a^(17/2)=a^8*a^(1/2)

4. myininaya

5. anonymous

you can simplify the $\sqrt{a ^{17}}$ to $a^{8}\sqrt{a}$

6. myininaya

very good!

7. anonymous

do you happen to know what the cubed square root of -64 is