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ACT Math 1.2 Elementary Algebra 272 Views


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Description:

ACT Math: Elementary Algebra Drill 1, Problem 2. Can you simplify the expression?

Language:
English Language

Transcript

00:03

Here's your shmoop du jour... extra crackers...free. Simplify: 5y plus 2z plus 3x squared minus

00:11

the quantity 2y minus 2z plus 4x And here are the potential answers...

00:19

OK so what is this question asking?

00:23

Well, this one is really just a gnarly simplification problem. So... put on your simplifyin' pants.

00:32

If we take them one by one, we have a positive 3x squared which we'll just leave as is

00:36

-- not much we can do to simplify it.

00:41

Which incidentally takes out D and E as options.

00:44

So now distribute this negative sign and rewrite the problem and we have

00:48

3x squared plus 5y plus 2z minus 2y PLUS 2z minus 4x.

00:55

Now we can combine like terms to get 3x squared plus 3y plus 4z minus 4x...

01:01

...so the answer is C.

01:03

As in, "Can't believe it's not butter."

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