21x^2+6x=0

Simple and best practice solution for 21x^2+6x=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 21x^2+6x=0 equation:


Simplifying
21x2 + 6x = 0

Reorder the terms:
6x + 21x2 = 0

Solving
6x + 21x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(2 + 7x) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(2 + 7x)' equal to zero and attempt to solve: Simplifying 2 + 7x = 0 Solving 2 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 7x = 0 + -2 7x = 0 + -2 Combine like terms: 0 + -2 = -2 7x = -2 Divide each side by '7'. x = -0.2857142857 Simplifying x = -0.2857142857

Solution

x = {0, -0.2857142857}

See similar equations:

| 25-9c=c | | -12y=9y-15 | | 5.8x+7=3.8x+1 | | 9b+12-4b=22 | | 4(x-3)-6x=38 | | 5.9m+6.8=17.36-13.3m | | (8x-9)(7x+3)= | | 2(3x-8)-4x=7x+19 | | x=2x+3x | | 18/5x60/7 | | 3x+9-5x=5+6x+6 | | 16x+x^2=-64 | | 5-2(x-1)=8 | | x^2-17-60=0 | | 4/7x+8=16 | | 2x=x+1 | | 14x-12/18x | | x/8-2=4 | | 6+6(1+5r)=-168 | | y=-(-2)-1 | | 24/9+41/2 | | y=-2-1 | | 6n-2=2n+14 | | (5p/6)+7=32 | | 5-9x=-49 | | 3-4(-r-7)=7(3+r)+4 | | y=-0-1 | | 20x-25x^2=4 | | y=4(1)+5 | | -3.5=1.4 | | y=4(0)+5 | | 40x^3-10x^2-5x=10 |

Equations solver categories