Daman311201 Daman311201

27-06-2016
Mathematics

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Multiply out the bracket and simplify 3(x+7)+2x

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apologiabiology apologiabiology

27-06-2016

remember
order of operaions and distributiv propery
a(b+c)=ab+ac

3(x+7)+2x
multiply first (distribute)
3(x+7) =3x+21
3x+21+2x
5x+21

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