ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Intermediate Algebra Videos 25 videos
ACT Math Intermediate Algebra Drill 1, Problem 1. What is the product of (a – 3)2?
ACT Math Intermediate Algebra Drill 1, Problem 2. Find the product of (2a + 6)2.
ACT Math Intermediate Algebra Drill 1, Problem 3. Can you find the value of a in this expression?
ACT Math 1.2 Intermediate Algebra 695 Views
Share It!
Description:
ACT Math Intermediate Algebra Drill 1, Problem 2. Find the product of (2a + 6) 2 .
- Intermediate Algebra / Binomials
- Product Type / ACT Math
- Foreign Language / Arabic Subtitled
- Foreign Language / Korean Subtitled
- Foreign Language / Spanish Subtitled
- Foreign Language / Chinese Subtitled
- Number and Quantity / Perform arithmetic operations with complex numbers
- Number and Quantity / Use complex numbers in polynomial identities and equations
- Number and Quantity / Perform arithmetic operations with complex numbers
- Number and Quantity / Use complex numbers in polynomial identities and equations
- Intermediate Algebra / Roots of polynomials
Transcript
- 00:02
And here's another shmoop de jour...
- 00:04
Find the product: quantity 2a plus 6 squared.
- 00:07
And here are the potential answers...
- 00:12
OK so what is this question asking?
- 00:14
FOIL, baby!
Full Transcript
- 00:16
Anyway... as we hopefully recall, FOIL is all about first, outside, inside, last...
- 00:21
and in this case we just multiply the stuff in parentheses... by itself.
- 00:26
We get quantity 2a plus 6 times 2a plus 6.
- 00:30
So the 2a times 2a gets us 4a squared.
- 00:33
Then the outsides are 2a times 6, which is 12a... we add this to the insides, which are
- 00:38
2a times 6 for a total of 24a.
- 00:41
The end is 6 times 6 which is 36...
- 00:43
So the answer is E.
Related Videos
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.
ACT Math: Plane Geometry Drill 3, Problem 1. What is the area of the trapezoid shape in the video?
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...