SOLUTION: Solve the equation by a method of your choice. 4x^2+15x+9=0

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Question 450582: Solve the equation by a method of your choice.
4x^2+15x+9=0
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
factor by grouping
what are factors of 36 (4*9) which add up to 15
12 and 3
4x^2+12x+3x+9=0
4x*(x+3)+3*(x+3)=0
(4x+3)*(x+3)=0
4x+3=0
x=-3/4
x+3=0
x=-3