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Algebra II Videos 107 videos

Simplifying Rational Expressions
1405 Views

Rational expressions are too complex... it's about time someone simplified them.

Tangent Half-Angle Formula
1378 Views

Mosquitos need their caffeine, just like the rest of us. Wouldn't think zipping around and stinging people all day long sap your energy?

ACT Math 3.4 Pre-Algebra
397 Views

ACT Math Pre-Algebra: Drill 3, Problem 4. Find the solution to this equation.

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SAT Math 6.4 Algebra and Functions 494 Views


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Description:

SAT Math 6.4 Algebra and Functions

Language:
English Language

Transcript

00:02

Here's your shmoop du jour...

00:04

A to the power of x + y times a to the power of x - y equals... what?

00:12

And here are the potential answers...

00:16

So this is just a SUPER simple question about exponent rules.

00:23

We are multiplying two exponents with the same base...

00:27

which means we can just ADD our exponents.

00:29

Now if you didn't know that, oh are you screwed.

00:33

X + y + x - y equals... 2x.

00:38

So we have a to the power of 2x.

00:40

And... our answer's C.

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