Question 603829
2x^2+13x+15=0
rewrite the middle term as:
2x^2+10x+3x+15=0
group terms:
(2x^2+10x)+(3x+15)=0
factor each group:
2x(x+5)+3(x+5)=0
(x+5)(2x+3) = 0
x = {-5, -3/2}