one question...please help..so confusing

Question

anonymous · Answer

attachment

raden · Answer

10/-5 = ... ?
use the property of exponent, :
a^m : a^n = a^(m-n)
(a^m)^n = a^(m*n)

anonymous · Answer

Break the problem into its most basic elements.  Then just take it a step at a time. 

The answer is -8x^3.

anonymous · Answer

thankyou...thats the last one loo, it was a bit different than the others

anonymous · Answer

It may appear different when looking at the whole problem but if you look at the component problems they all are the same.

(10x^4y^2)^3

One component is (10x^4)*(10x^4) which equals 100x^8
(100x^8)*(10x^4) = 1000x^12

If you solve the problem but its smallest pieces it is quite simple.