Yopu Yopu
  • 13-02-2017
  • Mathematics
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Factor 6x^2 + 7x - 3

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Аноним Аноним
  • 13-02-2017
the correct answer would be (3x-1)(2x+3)
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Аноним Аноним
  • 13-02-2017
try the ac method 
6 * -3 = -18

factors of -19 are -2 , 3, 3

we need to get +7 form these numbers 

3*3 - 2  =  = 9 - 2 = + 7  looks good:-

6x^2 + 7x - 3 =  
6x^2 + 9x  - 2x - 3
or 
6x^2 - 2x + 9x - 3
factor the above by grouping:-
2x(3x - 1) + 3(3x - 1)

= (2x + 3)(3x - 1)  
thats your answer

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