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Number and Quantity Videos 14 videos
Approximately 874 people per day wonder what a unit rate is. If you're one of them, check out our video on unit rates and how to use them. (We just...
This video covers how to use cross products to solve for a missing number in a proportion by setting that proportion with a variable over the produ...
ACT Math 4.4 Intermediate Algebra 351 Views
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Description:
ACT Math: Intermediate Algebra Drill 4, Problem 4. Add these together.
- Intermediate Algebra / Complex numbers
- Product Type / ACT Math
- Foreign Language / Spanish Subtitled
- Foreign Language / Arabic Subtitled
- Foreign Language / Korean 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 / Complex numbers
Transcript
- 00:02
Time for your daily dose of shmoop...this won't hurt a bit.
- 00:06
Add: quantity 4 minus 5i plus quantity 7 plus 3i.
- 00:11
And here are the potential answers...
- 00:15
OK, well this is actually a pretty simple question...
- 00:17
...the parentheses are thrown in here just to confuse you.
Full Transcript
- 00:20
So... uh... we can give them the old heave-ho.
- 00:23
Now we have 4 minus 5i plus 7 plus 3i...
- 00:26
...which is 11 minus 2i.
- 00:28
There we go. So boom! The answer is B.
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