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Factorising Quadratics(where last sign is a plus) Example

2
1) 4x 12x+9
Times, first number by last number 4x9= 36
Find all the pairs of factors of 36 until you find the pair that add up to
the middle number12
1x36
6x6 (6+6=12)
Prepare two brackets
( )( )
2)…

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Factorising Quadratics(where last sign is a minus) Example

1) 10x2 19x2
Times, first number by last number 10x2= 20
Find all the pairs of factors of 20 until you find the pair that minus to give
the middle number19
1x20 (120= 19)
Prepare two brackets
( )( )
2) Compare…

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