# Algebra 2 Revision

Mind Map by , created almost 6 years ago

## GCSE Maths (Algebra) Mind Map on Algebra 2 Revision, created by c4m3ront_2001 on 12/12/2013.

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 Created by c4m3ront_2001 almost 6 years ago
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Algebra 2 Revision
1 Factorising
1.1 Factorising is the opposite of expanding brackets. In order to find the answer, you have to find the HCF (Highest Common Factor) of every number. In this case, the equation is 8n+18. The HCF of 8 and 12 is 2 (*4x2=8 and 9x2=18). After you find the HCF, you put the HCF (In this case, it's 2) on the outside of the brackets. (Refer to the * sign for the next part) After putting 2 on the outside of the brackets, you put 4n+9 on the inside of the brackets. So from the equation 8n+18, it becomes 2(4n+9). Try factorising these equations :
1.1.1 10b-55