simplify

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

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.

actually it says by using the laws of exponents?

By using the law of exponents, we cannot combine anything because the terms are all different.

I'm sorry that was the wrong problem

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

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?

5^3?

Yes 5^3 or 125. I am not sure how your teacher will want the answer.

Thank you

To simplify the expression (5x^2 - 3x - 8), there are no like terms that can be combined or any specific operations to be performed like factoring or expanding. Therefore, the expression cannot be simplified any further.