## The Primitives of Precalculus

by Robert Curtis

# Quadratic Equations - Quadratic Formula

- P4: Quadratic Functions:
- P4.3: Quadratic Equations:
- P4.3.e: Quadratic Formula:
- P4.3.e.1: ChalkTalk Help Movie

Curriculum Home with Demo Access

## Distance Calculus - Student Reviews

*Date Posted: Feb 28, 2020*

Review by: Karen N.

Courses Completed: Calculus I, Calculus II

Review: Awesome classes! I was really weak with Calculus, so I retook Calc 1 and kept going into Calc 2. I feel like I finally understood Calculus. The finals were pretty thorough, but not nearly as stressful as the blue book exams. I highly recommend these courses!

Transferred Credits to: Various

*Date Posted: Mar 16, 2020*

Review by: Malia K.

Courses Completed: Applied Calculus

Review: Course was good and fast. I don't like math so I can't say it was fun or anything. Grader was very nice. Software was ok.

Transferred Credits to: University of Maine

*Date Posted: Feb 25, 2020*

Review by: Jessica M.

Courses Completed: Applied Calculus

Review: I highly recommend this course. I started the Kennedy School at Harvard with a last-minute admission, but my application required the Liberal Arts calculus course, so I had to finish the course in 3 weeks. Diane was an awesome instructor! The class was surprisingly interesting. If you need to take calculus fast, this is the program to use.

Transferred Credits to: Kennedy School of Government, Harvard University