## anonymous one year ago Need help!

1. anonymous

|dw:1439947712266:dw|

2. misty1212

HI!!

3. misty1212

this is pretty much impossible to read use the equation tool below and it will be clear

4. misty1212

i can try if you like

5. anonymous

$\left(\begin{matrix}9a ^{5}t ^{-1} \\ at ^{5}\end{matrix}\right)^{2}$

6. misty1212

$\huge\left(\frac{9a^5t^{-1}}{at^5}\right)^2$

7. anonymous

yeah that's it.

8. misty1212

lets work in side the parentheses first

9. misty1212

$\frac{a^5}{a}=a^4$ right?

10. misty1212

and $\frac{t^{-1}}{t^5}=\frac{1}{t^6}$ so we can go to $\huge\left(\frac{9a^4}{t^6}\right)^2$

11. misty1212

then multiply all exponents by 2, don't forget to square the 9 as well

12. misty1212

you got that last step?

13. anonymous

okay to make sure I'm following correctly... would I get $\frac{ 18a ^{8} }{ t ^{12} }$

14. misty1212

close, but you balked on squaring 9 you just doubled it

15. anonymous

is everything right except for the 18?

16. misty1212

yeah it should be $$81$$

17. misty1212

since $$9^2=81$$ unless maybe you have a fit of dyslexia, then it could be $$18$$

18. anonymous

okay. Thanks for your help!

19. misty1212

$\color\magenta\heartsuit$