Monday 8 February 2016

FACTORIZATION-5


Factorize completely   (3x-2)2 - x2  

solution

= (3x-2)2 - x2  

= [(3x-2) - x][ (3x-2) + x ]  --- since a2 + b2 = (a+b)(a-b) Here a is (x-2) and b is x.

= [3x-2 - x][ 3x-2 + x ] 

= [3x-x-2][ 3x+ x - 2  ] 

= [2x-2][ 4x - 2  ] 

= [2x-2][ 4x - 2  ] 

Hence  (3x-2)2 - x2  = (2x-2)(4x - 2) 


TRY THIS....................


Factorize completely   (4x-1)2 - x2  

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