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ACT Math 1.2 Intermediate Algebra 694 Views


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Description:

ACT Math Intermediate Algebra Drill 1, Problem 2. Find the product of (2a + 6) 2 .

Language:
English Language

Transcript

00:02

And here's another shmoop de jour...

00:04

Find the product: quantity 2a plus 6 squared.

00:07

And here are the potential answers...

00:12

OK so what is this question asking?

00:14

FOIL, baby!

00:16

Anyway... as we hopefully recall, FOIL is all about first, outside, inside, last...

00:21

and in this case we just multiply the stuff in parentheses... by itself.

00:26

We get quantity 2a plus 6 times 2a plus 6.

00:30

So the 2a times 2a gets us 4a squared.

00:33

Then the outsides are 2a times 6, which is 12a... we add this to the insides, which are

00:38

2a times 6 for a total of 24a.

00:41

The end is 6 times 6 which is 36...

00:43

So the answer is E.

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