Quadratic Equation Solver Guides
Step by step guides with worked examples for the Quadratic Equation Solver.
Completing the Square vs the Quadratic Formula
The difference between completing the square and the quadratic formula, why one derives the other, and when each is the better choice.
Read the guide →How to Factor a Quadratic Equation
How to factor a quadratic using the AC method, when a quadratic is factorable, and how to spot the difference of two squares.
Read the guide →How to Solve a Quadratic Equation
Three ways to solve a quadratic equation, when to use factorising, completing the square or the quadratic formula, with worked examples of each.
Read the guide →Where Quadratic Equations Show Up in Real Problems
Where quadratic equations appear in real problems: projectile motion, break-even analysis, braking distance, area, and optimisation problems.
Read the guide →The Discriminant: What b Squared Minus 4ac Means
What the discriminant b squared minus 4ac means, why it decides how many roots exist, and how it relates to the graph of the parabola.
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