D dagr8est Junior Member Joined Nov 2, 2004 Messages 128 Jul 6, 2005 #2 Take out the greatest common factor. 12=2(2)(3) 75=3(5)(5) Which prime factors do they have in common? Let f=greatest common factor, you should then have f(a^2-b^2). Notice a^2-b^2 is a difference of squares which can be factored to (a+b)(a-b). Your final answer should be in the form of f(a+b)(a-b).

Take out the greatest common factor. 12=2(2)(3) 75=3(5)(5) Which prime factors do they have in common? Let f=greatest common factor, you should then have f(a^2-b^2). Notice a^2-b^2 is a difference of squares which can be factored to (a+b)(a-b). Your final answer should be in the form of f(a+b)(a-b).