Question 64086
Factor the following completely:
It helps to recognize a perfect square trinomial:
{{{a^2+2ab+b^2=(a+b)^2}}}
And the difference of squares:
{{{a^2-b^2=(a+b)(a-b)}}}
:
9x^2 + 12xy + 4y^2 - 25
{{{(9x^2+12xy+4y^2)-25}}}
{{{((3x)^2+2(3x)(2y)+(2y)^2)-25}}}
{{{(3x+2y)^2-25}}}
{{{(3x+2y)^2-(5)^2}}}
{{{((3x+2y)+5)((3x+2y)-5)}}}
{{{(3x+2y+5)(3x+2y-5)}}}
Happy Calculating!!!