ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Algebra and Functions Videos 140 videos

SAT Math 1.2 Algebra and Functions
359 Views

SAT Math: Algebra and Functions Drill 1, Problem 2. Based on the data in the table, what is the maximum heart rate for the average 22-year-old?

SAT Math 1.3 Algebra and Functions
220 Views

SAT Math 1.3 Algebra and Functions. How many 16 oz. bottles did she buy?

SAT Math 1.4 Algebra and Functions
207 Views

SAT Math 1.4 Algebra and Functions. Solve for x.

See All

SAT Math 6.4 Algebra and Functions 486 Views


Share It!


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.

Related Videos

SAT Math 2.1 Geometry and Measurement
2779 Views

SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?

SAT Math 9.4 Algebra and Functions
1300 Views

SAT Math 9.4 Algebra and Functions

SAT Math 9.2 Algebra and Functions
377 Views

SAT Math 9.2 Algebra and Functions

SAT Math: Identifying an Equation for the Average of Two Percentages
23 Views

In 2014, the unemployment rate of one county in California was 7%. In another county, the unemployment rate was 11%. Which of the following express...

SAT Math: Which Equation Represents Profit?
13 Views

Angela is making cookies for a bake sale. She expects each batch of her cookies to sell for $40. It costs her $10 to make one batch of cookies, and...