## narissa one year ago when dividing exponents for division do u subtact?

1. jim_thompson5910

You mean something like this? $\LARGE \frac{x^8}{x^3}$

2. narissa

yes

3. narissa

4. jim_thompson5910

yes, you subtract the exponents (top - bottom) $\LARGE \frac{x^8}{x^3} = x^{8-3} = x^5$ this only works if the bases are the same. In this case, they are both x

5. narissa

so it would be c

6. jim_thompson5910

top exponent = 12 bottom exponent = -3 top - bottom = (top) - (bottom) = (12) - (-3) = ??? it's not going to be 9

7. narissa

d

8. jim_thompson5910

yes 12 - (-3) = 12+3 = 15

9. narissa

thanks can u help me with a few more?

10. jim_thompson5910

sure, one more

11. jim_thompson5910

post as a new question and tag me in it