Posted by **caren** on Wednesday, February 20, 2013 at 7:39pm.

simplify

(5x^2-3x-8)??

- algebra -
**JJ**, Wednesday, February 20, 2013 at 7:46pm
You can't simplify because there are no like terms.

Do you need to factor this?? or are you just being asked to combine like terms.

If you have to factor it. that is possible. Let me know.

- algebra -
**caren**, Wednesday, February 20, 2013 at 7:48pm
actually it says by using the laws of exponents?

- algebra -
**JJ**, Wednesday, February 20, 2013 at 7:49pm
By using the law of exponents, we cannot combine anything because the terms are all different.

- algebra -
**caren**, Wednesday, February 20, 2013 at 7:51pm
I'm sorry that was the wrong problem

is actually

(5^4 * 5^7)/5^8

- algebra -
**JJ**, Wednesday, February 20, 2013 at 8:06pm
so keep the base of 5 and add the exponents for the multiplication.

that gives you 5^11/5^8

For division, keep the base of 5 and subtract the exponents.

What is your final answer?

- algebra -
**caren**, Wednesday, February 20, 2013 at 8:14pm
5^3?

- algebra -
**JJ**, Wednesday, February 20, 2013 at 8:20pm
Yes 5^3 or 125. I am not sure how your teacher will want the answer.

- algebra -
**caren**, Wednesday, February 20, 2013 at 8:24pm
Thank you

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