More Lessons for Grade 9 Math
Examples, videos, worksheets, solutions and activities to help Algebra students learn about solving quadratic equations by the quadratic formula.
Quadratic Equations - solving using the formula
Some quadratic equations cannot be solved by factorising and so an alternative method is the quadratic formula. This tutorial shows you when to use it, clues given in a question and common mistakes that are made
Solving Quadratic Equations
The quadratic formula is x equals the opposite of b, plus or minus the square root of b squared, minus 4ac all over 2a
Advanced Quadratic Formula
Students learn to solve advanced quadratic equations using the quadratic formula, such as equations with fractions and rational equations.
Quadratic Equation Errors
Typical errors made when solving quadratic equations.
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