Question

Factorise 2x^2+7x+3.
Thanks

Answer 1

2x²+7x+3
product=6
sum     =7
---------------
      6,1
  ∴    2x²+x+6x+3
     = x(2x+1)+3(2x+1)
     = (2x+1)(x+3)=0
      so,
            x=-1/2 or x=-3  

Answer 2

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2x²+6x+x+3

= 2x(x+3)+1(x+3)

= (x+3)(2x+1)

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