Question 76311
6X^3+12X^2-15X=0
X(6X^2+12X-15)=0
3X(2X^2+4X-5)=0

2X^2+4X-5=0 USING THE QUADRATIC EQUATION & SOLVE FOR X THUS:
X=(-4+-SQRT[4*4-4*2*-5])/2*2
X=(-4+-SQRT[16+40])/4
X=(-4+-SQRT56)/4
X=(-4+-7.48)/4
X=(-4+7.48)/4
X=3.48/4
X=-.87
X=(-4-7.48)/4
X=-11.48/4
X=-2.87 ANSWER.