# Wrecks Factor

## Factorise simple and harder quadratics, including quadratics with common factors

S.O.S.! Ships navigating the treacherous Bermuda Rectangle are falling prey to bizarre disasters. Factorise quadratic expressions to answer the ships’ distress calls and save their stricken crews!

## 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.

## What teachers say about Mangahigh

We’re loved by both teachers and students globally. Here’s the proof!

• Mangahigh turns our students into “maths addicts“ who compete with each other for top scores and gold medals. And since the quizzes reward both accurate recall of knowledge and deep conceptual understanding, every hour they spent having fun makes them better mathematicians. Five stars.

###### Tom Ding

Ark Academy, Wembley, London

• I have used Mangahigh in my classroom for over 5 years. What keeps me coming back are the math games and wide range of concepts that are offered. But the best part is the fact that the kids LOVE to play it. I have students beg me to assign them Teacher Challenges! Begging for more math work? I am ok with that!!

###### Renee Hernandez

Green Elementary School, Allen, Texas

• Kids loved it; an ADHD student who has NEVER before been able to focus in the last periods of the day; he wouldn't stop till he got a medal! Absolutely phenomenal! His mother is overjoyed, and the rest of the maths staff room were gobsmacked!

###### Joseph Peacock

Emanuel School, NSW