SOLUTION: Solve the equation 7y3 - 14y2 + 6y = 0 by first factoring out the common factor y and then using the quadratic formula. (Enter solutions from smallest to largest. If there are any

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve the equation 7y3 - 14y2 + 6y = 0 by first factoring out the common factor y and then using the quadratic formula. (Enter solutions from smallest to largest. If there are any       Log On


   

Question 449463: Solve the equation 7y3 - 14y2 + 6y = 0 by first factoring out the common factor y and then using the quadratic formula. (Enter solutions from smallest to largest. If there are any unused answer boxes, enter NONE in the last boxes.)
y = ?
y = ?
y = ?
Please show me the steps to get the steps.
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
7y3 - 14y2 + 6y = 0
y(7y^2-14y+6)=0
a=7 b=-14 c=6

b^2-4ac= 196-(168)
b^2-4ac= 28
sqrt%28%0928%29= 5.29
x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=(14+5.29)/14
x1=1.38
x2=(14-5.29)/14
x2= 0.62
y=0
y=0.62
y=1.38