## The Primitives of Precalculus

by Robert Curtis

# Quadratic Functions - Quadratic Equations

- P4: Quadratic Functions:
- P4.3: Quadratic Equations:
- P4.3.a: Solve By Guessing
- P4.3.b: Solve Graphically
- P4.3.c: Solve Algebraically: Factoring
- P4.3.d: Complications with Factoring
- P4.3.e: Quadratic Formula
- P4.3.f: Using Quadratic Formula
- P4.3.g: Imaginary Numbers
- P4.3.h: Solve Numerically
- P4.3.i: Homework on Solving Quadratic Equations
- P4.3.j: Homework Problems

Curriculum Home with Demo Access

## Distance Calculus - Student Reviews

*Date Posted: Mar 17, 2020*

Review by: Rebecca M.

Courses Completed: Calculus II, Multivariable Calculus

Review: Fantastic courses! I barely made it through Cal 1, and halfway through Cal 2 I found this program. I took Cal 2 and then Multivariable and I just loved it! SOOOOOOO much better than a classroom+textbook class. I highly recommend!

Transferred Credits to: Tulane University

*Date Posted: Feb 23, 2020*

Review by: Carl Conners

Courses Completed: Multivariable Calculus, Differential Equations, Linear Algebra

Review: After a really rough first year of calculus, I completed all of the second year calculus courses with Distance Calculus. It was like night and day the difference. My first year was so boring and monotonous. Multivariable Calculus, Differential Equations, and Linear Algebra through Distance Calculus were just so much different - so not boring at all. I thoroughly enjoyed these courses. So engaging.

Transferred Credits to: Michigan State University

*Date Posted: Jan 19, 2020*

Review by: William Williams

Student Email: wf.williamster@gmail.com

Courses Completed: Linear Algebra, Probability Theory

Review: I have difficulty learning calculus based math, akin to dyslexia when examining the symbolic forms, equations, definitions, and problems. Mathematica based calculus courses allowed me to continue with my studies because of the option of seeing the math expressed as a programming language for which I have no difficulty in interpreting visually and the immediate feedback of graphical representations of functions, equations, or data makes a huge impact on understanding. Mathematica based calculus courses should be the default method of teaching Calculus everywhere.

Transferred Credits to: Thomas Edison State College