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3A

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4a^2

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4aa

Q: What is 4a x a?

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3a2

-5 is the answer -20a divided by 4a is -5. If we times 4a by a positive number, we would get a positive number, so we have to times it by a negative number. The number can't have an a at the end as this would mean when we times it by 4a we would end up with a2 -5 x 4 = -20 then we add on the a = -20a

a = -2-4a/3-2 = 8-4a = 8(3-2) times both sides by (3-2)-4a = 24-16-4a = 8-a = 2 divide both sides by 4a = -2 times both sides by -1

Add them together: 3a+4a-a = 6a

You have to multiply base x height - in this case, you obtain (4a)(2a+b). This can't be simplified; you can leave it as it is (factored), or multiply it out to obtain 8a2 + 4ab.

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American Association of Advertising Agencies: 4A's

4a x 4b = 16ab Variables can be multiplied just like numbers.

A

4a x 3

4a

30

Factor them. 2 x 2 x a = 4a 2 x 5 x a x a = 10a2 Select the common factors. 2 x a = 2a, the GCF.

10

Factor them. 2 x 2 x a = 4a 2 x 5 x a x a = 10a2 Combine the factors, eliminating duplicates. 2 x 2 x 5 x a x a = 20a2, the LCM