Working on this expression.. Can anyone check if this is correct. thank you!!

factorize $\displaystyle 9x^2-4y^2 + 6x + 4y $

= (3x+2y)(3x-2y)+(6x+4y)

= (3x+2y)(3x-2y)+2(3x+2y)

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- Aug 19th 2008, 08:55 AMjvignaciofactorizing
Working on this expression.. Can anyone check if this is correct. thank you!!

factorize $\displaystyle 9x^2-4y^2 + 6x + 4y $

= (3x+2y)(3x-2y)+(6x+4y)

= (3x+2y)(3x-2y)+2(3x+2y) - Aug 19th 2008, 09:08 AMSean12345
Yes it is right. You can always check by multiplying out the brackets.

Maybe a neater solution would be;

$\displaystyle

3x(3x+2)+4y(1-y)

$ - Aug 19th 2008, 10:25 AMChop Suey