Originally Posted by

**Reiper** Hello there!

I recently enrolled in a high school math course needed to take a college course, but I was always dreadful at math, and this is a correspondence course with minimal student assistance.

I am having some difficulties, and would like help with two question

1)

(3x^{4}*y^{5}*z^{7})^{5 }___________

(-3x^{3}*yz^{4})^{7}

For this question I got

y^{18}z^{7}

_____

9x

However I think I am wrong. The next question I found even more confusing

2)

(x^{a+b})^{a-b}

_________

(x^{a-2b})^{a+2b }

for this one I got 1/-4 but again, i think I am very lose