Question
Mon September 07, 2009 By: Jyothirmayee Bendalam

Easy way to split the middle term in a quadratic equation to know its factorors.

Expert Reply
Mon September 07, 2009

Method splitting the middle term of the equation ax2+bx+c=0  where

     a ¹ 0.

 

i.                   Form the product “ac”

 

ii.                 Find a pair of numbers b1 and b2 whose product is  “ac” and whose sum is “b”.  Write all the  factors of ac and try out different combinations to sum up and then find b1 and b2

 

iii.              Express the term bx as  b1x + b2x .Now  factor by grouping pairs of terms

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