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Mathematics 8 Online
OpenStudy (narissa):

when dividing exponents for division do u subtact?

jimthompson5910 (jim_thompson5910):

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

OpenStudy (narissa):

yes

OpenStudy (narissa):

jimthompson5910 (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

OpenStudy (narissa):

so it would be c

jimthompson5910 (jim_thompson5910):

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

OpenStudy (narissa):

d

jimthompson5910 (jim_thompson5910):

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

OpenStudy (narissa):

thanks can u help me with a few more?

jimthompson5910 (jim_thompson5910):

sure, one more

jimthompson5910 (jim_thompson5910):

post as a new question and tag me in it

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