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Mathematics 15 Online
OpenStudy (iiariana):

Which expression is equivalent to 6a + 12? 6(a + 6) 3(3a + 9) 6(a + 9) 2(3a + 6)

OpenStudy (anonymous):

Use distributive property \[\large a(b+c)~=~ab+ac\]

OpenStudy (iiariana):

So It's out of A & C?

OpenStudy (iiariana):

Legendary?

OpenStudy (lynfran):

no

OpenStudy (iiariana):

It's not

OpenStudy (lynfran):

ok look at it this way...what number can u factor out equally between 6 and 12?....now that number when multiplied to the brackets give back (6a+12)

OpenStudy (iiariana):

the number that factors out equally is 6

OpenStudy (anonymous):

\[\large 6(a+6) \Rightarrow 6a+36\]\[\large 3(3a+9) \Rightarrow 9a+27\]\[\large 6(a+9) \Rightarrow 6a+54\]\[\large 2(3a+6) \Rightarrow 6a+12\]

OpenStudy (iiariana):

It's B

OpenStudy (iiariana):

15a + 39 ?

OpenStudy (anonymous):

It ain't B

OpenStudy (iiariana):

So then It's D

OpenStudy (lynfran):

factors of 6....1,2,3,6... factors of 12....1,2,3,4,6....

OpenStudy (anonymous):

Yes, it's D.

OpenStudy (iiariana):

Ok thanks!

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