ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Elementary Algebra Videos 26 videos
ACT Math: Elementary Algebra Drill 3, Problem 2. Solve for z, when x = 2 and y = 5.
ACT Math: Elementary Algebra Drill 1, Problem 1. What is Ben's current age?
ACT Math: Elementary Algebra Drill 5, Problem 1. How old is Jeremy's brother?
ACT Math 3.5 Elementary Algebra 276 Views
Share It!
Description:
ACT Math: Elementary Algebra Drill 3.5. Simplify the expression.
Transcript
- 00:03
Here's your shmoop du jour:
- 00:05
Simplify: a cubed times b to the fourth over a squared times b squared.
- 00:09
And here are the potential answers...
- 00:14
OK. It's about division of exponents: do we realize we can subtract?
- 00:19
So with a cubed over a squared, we can subtract 3 minus 2 and the a in the denominator just
Full Transcript
- 00:24
goes away.
- 00:26
So we just have a in the numerator.
- 00:28
Now let's deal with b.
- 00:29
b to the 4th can subtract b squared and we have b squared remaining in the numerator.
- 00:36
So the whole problem simplifies to a times b squared.
- 00:39
Answer: A.
Related Videos
ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
ACT Math: Coordinate Geometry Drill 1, Problem 1. Which inequality is expressed by the number line?
ACT Math: Intermediate Algebra: Drill 3, Problem 1. Find the fifth number in the series.
We don't like knocking people down to size, but we do like simplifying radicals. Join us?
If fleeing criminals always fled the scene of the crime at perfect right angles, it would be much easier to determine their whereabouts. Fortunatel...