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0. Review of Algebra4h 16m
1. Equations & Inequalities3h 18m
2. Graphs of Equations1h 31m
3. Functions2h 17m
4. Polynomial Functions1h 44m
5. Rational Functions1h 23m
6. Exponential & Logarithmic Functions2h 28m
7. Systems of Equations & Matrices4h 6m
8. Conic Sections2h 23m
9. Sequences, Series, & Induction1h 19m
10. Combinatorics & Probability1h 45m

1. Equations & Inequalities

Complex Numbers

College Algebra1. Equations & InequalitiesComplex Numbers

Multiple Choice

Multiple Choice

Find the product. Express your answer in standard form. $2i\left(9-4i\right)\left(6+5i\right)$

A

$8+18i$

B

$54-20i$

C

$54-40i$

D

$-42+148i$

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