ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Adding and Subtracting Polynomials Videos 2 videos
Math Elementary Algebra: Drill 1, Problem 4. Solve for y using substitution.
Math Elementary Algebra: Drill 2, Problem 1. Simplify the expression.
ACT Math 2.1 Elementary Algebra 308 Views
Share It!
Description:
Math Elementary Algebra: Drill 2, Problem 1. Simplify the expression.
- Elementary Algebra / Polynomial basic operations
- Elementary Algebra / Simplifying expressions
- Product Type / ACT Math
- Foreign Language / Arabic Subtitled
- Foreign Language / Spanish Subtitled
- Foreign Language / Chinese Subtitled
- Foreign Language / Korean Subtitled
- Elementary Algebra / Understanding algebraic operations
Transcript
- 00:03
Here's your shmoop du jour... brought to you by the makers of grey shmoopoun
- 00:07
Simplify: Quantity 5x plus 3xy plus 4y plus the quantity 4x minus 2xy minus 2y.
- 00:16
And here are the potential answers... oh what a mess.
- 00:21
OK so what is this question asking?
- 00:24
Well, we really just have to combine like terms.
Full Transcript
- 00:27
Just don't tell the terms they... like each other. We don't want to be accused of betraying
- 00:32
confidences.
- 00:33
Since there's no multiplying or division at play here, we can really just ignore the
- 00:37
parentheses...
- 00:37
...and add everything that goes together... together.
- 00:42
5x and 4x give us 9x... 3xy MINUS 2xy gives us xy... and 4y MINUS 2y gives us 2y.
- 00:53
So... 9x plus xy plus 2y...
- 00:56
...and the answer is E.
- 00:57
As in, "Everyone deserves a little love."
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.
CAHSEE Math: Algebra I Drill 6, Problem 2. Simplify the polynomial.