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Factorising
To factorise an expression such x2 + 5x + 6, you need to look for two numbers that add up to make 5 and multiply to give 6
The factor pairs of 6 are:
1 and 6
2 and 3
2 and 3 add up to 5. So: (x +2) (x+3) = x2 + 5x + 6
Factorising expressions gets trickier with negative numbers.)
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Decimals/pre-algebra multiplication decimal 2
Decimals/pre-algebra multiplication decimal 1
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