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Mathematics 23 Online
OpenStudy (anonymous):

Multiply. State any excluded values.

OpenStudy (anonymous):

|dw:1363802724217:dw|

OpenStudy (anonymous):

find a common denominator first then multiply that out to each part of the equation then see if you can cancel out then combine the terms

OpenStudy (anonymous):

Oooh, how do I find a common denominator with variables involved?

OpenStudy (anonymous):

well in this case you can just multiply the two denominators together\[\frac{ q+2 }{ q+2 }(\frac{ q+5 }{ -3 }) \times \frac{ -3 }{ -3 }(\frac{-3q }{ q+2 })\]

OpenStudy (anonymous):

Is there where I cancel out now?

OpenStudy (anonymous):

if terms match up, yes! cancel them out

OpenStudy (anonymous):

Uhmmmmmmmmmmmmm are you talking about canceling out these? |dw:1363803789068:dw|

OpenStudy (anonymous):

well lets multiply it out first

OpenStudy (anonymous):

|dw:1363804002418:dw|

OpenStudy (anonymous):

3q + 6 / 3q + 6?

OpenStudy (anonymous):

\[\frac{ (q+2)(q+5) }{ -3(q+2) }\times \frac{ -9q }{ -3(q+2) }=\frac{ -9q(q+2)(q+5) }{ -3(q+2) }\]

OpenStudy (anonymous):

then we can simplify this down to \[-\frac{ q(q+5) }{ (q+2) }\]

OpenStudy (anonymous):

but im sorry it was a bit confusing i actually shouldn't have calculated it out for you because i canceled when i did the common denominator.

OpenStudy (anonymous):

These are the first two answer choices, the last two are similar to it so I'm still confused with what you're doing. and it's ok :b

OpenStudy (anonymous):

alright, can you show me the choices ?

OpenStudy (anonymous):

\[\frac{ q+5 }{ -3 } \times \frac{ -3q }{ q+2 }\] Answer choice A

OpenStudy (anonymous):

I mean that's the equation e.e here's the asnwers under this post v.V

OpenStudy (anonymous):

A. \[\frac{ -3q ^{2} - 15q }{ -3 } ; where q \neq 3\]

OpenStudy (anonymous):

B. \[\frac{ -3q - 15 q ^{2} }{ 2q-6 } ; where q \neq 3\]

OpenStudy (anonymous):

C. \[\frac{ q ^{2} - 15q }{ -3q } ; where q \neq 0\]

OpenStudy (anonymous):

D. \[\frac{ -3q ^{2} - 15q }{ -3q-6 } ; where q \neq -2\]

OpenStudy (anonymous):

@sjerman1

OpenStudy (anonymous):

D. @AngelCriner

OpenStudy (anonymous):

\[\frac{ -3q(q+5) }{ -3(q+2) }=\frac{ -3q^2-15q }{ -3q-6 };q \neq-2\]

OpenStudy (anonymous):

Thank you

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