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Mathematics 14 Online
OpenStudy (anonymous):

collect like terms: a-13a my answer: a(13-a) am i correct, if not what am i doing wrong?

OpenStudy (anonymous):

a-13a is the question

Parth (parthkohli):

No, it is not correct!

Parth (parthkohli):

\[a(13 - a) = 13a - a^2 \]

OpenStudy (anonymous):

how did you get that?

Parth (parthkohli):

Well, never mind that, but a - 13a is not equal to a(13 - a)

Parth (parthkohli):

If you know a little about factorization, then, a - 13a is equal to a(1 - 13) You can simplify 1 - 13.

Parth (parthkohli):

What is 1 - 13?

OpenStudy (anonymous):

-12

Parth (parthkohli):

Right, and what is a(-12) ?

OpenStudy (anonymous):

-12a

Parth (parthkohli):

And that is the correct answer. :)

OpenStudy (anonymous):

ooh ok!!

OpenStudy (anonymous):

thank you:)

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