# Wrecks Factor

Factorise quadratic equations to help ships who are navigating and falling prey to the treacherous Bermuda Rectangle.

## Selection of related activities

Curriculum-aligned activities

• ### Factorise using a common term

Remove a common factor to leave single brackets. Include more than one factor e.g. 7x² + 14x.

• ### Factorise a²x² - b² using the difference of two squares

Factorise quadratics and other expressions using the difference of two squares where the first term has a square coefficient other than 1. e.g. (ax)² - (by)² including removing a common factor from each term first.

• ### Factorise quadratics in form x² + bx + c

Factorise quadratics of the form x² + bx + c including those that require manipulation to reduce to this form, including removing a common factor from each term first.

• ### Factorise quadratics in form ax² + bx + c

Factorise quadratics of the form ax² + bx + c including those that require manipulation to reduce to this form, including removing a common factor from each term first.

• ### Factorise x² - b² using the difference of two squares

Factorise quadratics and other expressions using the difference of two squares where the coefficient of x² is 1, or where a common factor can be removed to make it 1. e.g. 3x² - 3a².

• ### Solve quadratics by factorising - coefficient of x² equals 1

Solve by first factorising into 2 brackets including equations that require a common factor to be removed first, form x² + bx + c = 0 or px² + pbx + pc = 0.

## How to teach Algebra using Mangahigh

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