SOLUTION: Solve 2x³+6x²=20x 2x³+6x²-20x= 0 2x (x²+3x-10) (x+5)(x-2)=0 I am unsure if the correct solution set is {-5, 0, 2}

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Solve 2x³+6x²=20x 2x³+6x²-20x= 0 2x (x²+3x-10) (x+5)(x-2)=0 I am unsure if the correct solution set is {-5, 0, 2}      Log On


   

Question 673352: Solve
2x³+6x²=20x
2x³+6x²-20x= 0
2x (x²+3x-10)
(x+5)(x-2)=0
I am unsure if the correct solution set is {-5, 0, 2}
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

2x³+6x²-20x= 2x (x²+3x-10)= 2x(x+5)(x-2)

2x(x+5)(x-2)=0 

  2x = 0   x = 0

0r (x+5)= 0   x = -5

0r (x-2)=0    x = 2 

solution set {-5, 0, 2} is correct.  Good work!