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Difference Of Two Squares - Factorising Quadratics | Algebra | Maths | FuseSchool
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In this video we discover what the difference of two squares means and how to factorise these ‘special’ quadratics.
To factorise these quadratics, you need to know the square numbers. Any expression that has x-squared as the highest power of ‘x’ is a quadratic. When there is an x-squared, a square number and a minus sign but no middle x-term, we can use the difference of two squares to factorise them. Both the x-squared and the number have to be squares, and then they factorise into two brackets.
The brackets are identical except one bracket is plus and the other is minus.
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To factorise these quadratics, you need to know the square numbers. Any expression that has x-squared as the highest power of ‘x’ is a quadratic. When there is an x-squared, a square number and a minus sign but no middle x-term, we can use the difference of two squares to factorise them. Both the x-squared and the number have to be squares, and then they factorise into two brackets.
The brackets are identical except one bracket is plus and the other is minus.
SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT.
These videos can be used in a flipped classroom model or as a revision aid.
Find all of our Chemistry videos here:
Find all of our Biology videos here:
Find all of our Maths videos here:
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