Posted by **-Untamed-** on Monday, December 5, 2011 at 5:27pm.

x^3 + 8x^2 = 20x

How do I find the root of ^ that equation?

2x^2-10x+12 = 0

^ I found that one by...

2(x-3)(x-2)

x-3 = 0

x = 3

x-2 = 0

x =2

^ Is that the correct way to solve for that one?

- Math -
**MathMate**, Monday, December 5, 2011 at 6:17pm
Your solution to the second equation is correct, and the procedure also.

For the first equation, think of it as:

x^3 + 8x^2 = 20x

x^3 + 8x^2 - 20x = 0

x(x^2 + 8x - 20) = 0

then x=0 is a solution, and you can get two more solutions from the part in parentheses in a similar way to the second equation.

- Math -
**-Untamed-**, Monday, December 5, 2011 at 6:26pm
Thanks so much MathMate =)

- Math -
**MathMate**, Monday, December 5, 2011 at 6:56pm
You're welcome, and keep up the good work!

## Answer This Question

## Related Questions

- Math - x^3 + 8x^2 = 20x How do I find the root of ^ that equation? 2x^2-10x+12...
- Math - solve the equation 20x^3 +44x^2 -17x -5 given that -5/2 is a zero of f(x...
- math,factoring,help - Can someone please show me step by step how to do these. I...
- math - Find the product. (2x)(10x) A.20x B.12x C.20x^2 D.-5x Is the answer A?? ...
- algebra - Find the product (2x)(10x) Answers: 20x 12x 20x^2 5x
- Math - Find the equation of the tangent line 5x^2+y^2=14 at (1,3). P.S: It's ...
- maths - x^2 - 20x +c =0 one of the root of the equation is the three times the ...
- Math Help! - 1. Find the product. (2x)(10x) 20x 12x 20x^2 5x 2. -3m(m + 8) -3m^...
- Calculus. Please help! - Find the minimum value of the function f(x,y= 25x^2+3y^...
- math - I HAVE THESE ANSWERS FOR THE PROBLEMS. COULD YOU DOUBLE CHECK PLEASE, ...

More Related Questions