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Factoring Polynomials Videos 14 videos

Factoring Trinomials of the Type ax^2 + bx +c
2329 Views

There are a variety of methods for factoring trinomials, Complete the square! Use the quadratic formula! Or be a genius and do it in your brain!

Factoring Polynomials
3383 Views

Factoring polynomials allows us to group things—and everything's always better in groups. Well... almost everything.

Factoring Polynomials by Grouping
10286 Views

Factoring polynomials by grouping is easy. You just combine like terms and then factor them out. Ta da!

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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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