SOLUTION: WHAT IS THE ANSWER TO: 3x to the neg.9 exponent times 5x to the 5th exponent over 18x to the neg 4 exponent. Tried to type it but couldn't get negative sign to work. my ans

Question 360535: WHAT IS THE ANSWER TO:
3x to the neg.9 exponent times 5x to the 5th exponent over 18x to the neg 4 exponent.
Tried to type it but couldn't get negative sign to work.
my answer is to add the two exponents -9 from 3x and 5 from 5x variable and got -4 exponent. Then multiplied 3 times 5 so = 15x to the -4 as numerator and 18x to the -4 for denominator. = 15x to the 0 as numerator over 18 for denominator. Now I don't know what to do with the 15x to the 0. I know x to the 0=1 so is 15x to the 0=15? Making my final answer 15/18=5/6 ?
Answer by Edwin McCravy(20060) (Show Source): You can put this solution on YOUR website!



You have it right.  There are two ways to go from the next to the last step:







As I said above, there are two ways you can go from here.
You subtracted exponents and got



and then replaced the  by ,





which reduces to 

-------------------------------

The other way to go from



is to cancel the 's



and get  which reduces to 

Edwin

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