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10-05-2017
Mathematics

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what is 3x+5x+2 factorised for yr 10 gcse

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Аноним Аноним

10-05-2017

Factorising quadratic expressions

Multiply these brackets to remind yourself how to factorise.

( x + 2 ) ( x + 5 ) = x2 + 7x + 10( x + 2 ) ( x + 3 ) = x2 + 5x + 6( x - 3 ) ( x - 5 ) = x 2 - 8x + 15( x + 6 ) ( x - 5 ) = x2 + x - 30( x - 6 ) ( x + 5 ) = x2 - x - 30

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