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Mathematics 8 Online
OpenStudy (usarmy3947):

Simplify

OpenStudy (usarmy3947):

OpenStudy (anonymous):

\[\frac{ x ^{a} }{ x ^{b} }= x^{a-b}\]

OpenStudy (anonymous):

Apply that to your example, and what do you get?

OpenStudy (usarmy3947):

|dw:1381519817530:dw|

OpenStudy (anonymous):

no 15^-9 OR 1/15^9

OpenStudy (anonymous):

\[15^{-4-5}=15^{-9}\]

OpenStudy (anonymous):

you sir are learning how to write the information, bravo.

OpenStudy (usarmy3947):

|dw:1381519893360:dw|

OpenStudy (anonymous):

bingo. good job

OpenStudy (anonymous):

now we need to work on getting correct answers.

OpenStudy (anonymous):

awesome, good job

OpenStudy (anonymous):

good work :D

OpenStudy (usarmy3947):

thank you guys

OpenStudy (vjordillo):

\[\frac{ x ^{a} }{ x ^{b} } = x ^{a-b}\] if a>b, but if b>a then,\[\frac{ x ^{a} }{ x ^{b} }=\frac{ 1 }{ x ^{b-a} }\]

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