HSC Together Year 11 Maths Advanced: Solving Quadratic Equations (Quadratic Formula and Completing the Square)

#### Maths Advanced

• Working With Functions
• Trigonometric Functions
• Calculus
• Exponential and Logarithmic Functions
• Statistical Analysis
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Back to other subjects

# Solving Quadratic Equations (Quadratic Formula and Completing the Square)

### What are quadratic equations?

This post will help you when solving quadratic equations using the quadratic formula and by completing the square, as a part of the Prelim Maths Advanced course under the topic Working with Functions and sub-part Algebraic Techniques. A quadratic equation is an equation in the form of ax^{2} + bx + c , where the highest power of the variable is a 2.

### How to solve quadratic equations by factorising

This video covers the basics of solving quadratic equations by taking out the common factor.

### How to use the quadratic formula

The following video introduces the quadratic formula, where it can be used to solve quadratic equations.

### How to complete the square

This video covers the best method to go about completing the square to factorise a quadratic equation.

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