SOLUTION: Factor it. 3x(squared)+11xy-4y(square) 10y(squared)+9y+2 12x(squared)-8x-15 thanks!

Question 430415: Factor it.
3x(squared)+11xy-4y(square)
10y(squared)+9y+2
12x(squared)-8x-15
thanks!
Answer by akch2002(12) (Show Source): You can put this solution on YOUR website!
3x^2+11xy-4y^2
= 3x^2+12xy-xy-4y^2
= 3x(x+4y)-y(x+4y)
= (3x-y)(x+4y)
10y^2+9y+2
=10y^2+5y+4y+2
=5y(2y+1)+2(2y+1)
=(5y+2)(2y+1)
12x^2-8x-15
=12x^2-18x+10x-15
=6x(2x-3)+5(2x-3)
=(6x+5)(2x-3)
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