Answers

2015-04-12T22:34:40+05:30
So the like terms first .. if its x square then
x^2 (its x square ok?)
x^2 + x^2 + 8x + 17x +72 + 12
=2x^2 + 25x + 84
1 5 1
2015-04-14T07:44:35+05:30
X2 + 8x + 12  
      x2 + 6x + 8x + 12 
     ( x2 +6x ) ( 8x + 12 )
     x( x + 6 ) + 2( x+ 6 )
        ( x + 2 ) ( x + 6 ) 
x2 + 17x + 72 
= x2 + 8x + 9x + 72 
= ( x2 + 8x ) ( 9x + 72 )
= x( x + 8 ) + 9( x+ 8 ) 
= ( x+ 9 ) ( x+ 8 )  
hope u have understand it 

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