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How we can factorise

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How we can factorise
  • 1 answers

Hans Raj 8 years, 4 months ago

let us take an example and solve it by using 8 simple steps

Factor x2 + 5x + 6  

1    compare it with standard form ax2 + bx + c

2    a= 1 , c = 6 ,  axc = 1x6=6

3   next we need to find factors of 6 which add up to 5    ( i.e =  b)

4  since 6 can be written as product of 3 and 2 and since 2 + 3 = 5

5  Therefore we will use 2 and 3

6  we will write two numbers found above as  follows

7      (x + 2)(x +3)

8   Therefore the answer is       x2 + 5x + 6 = (x + 2)(x + 3)

 

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