12x^2+21x=0

Simple and best practice solution for 12x^2+21x=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 12x^2+21x=0 equation:


Simplifying
12x2 + 21x = 0

Reorder the terms:
21x + 12x2 = 0

Solving
21x + 12x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(7 + 4x) = 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 '(7 + 4x)' equal to zero and attempt to solve: Simplifying 7 + 4x = 0 Solving 7 + 4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 4x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 4x = 0 + -7 4x = 0 + -7 Combine like terms: 0 + -7 = -7 4x = -7 Divide each side by '4'. x = -1.75 Simplifying x = -1.75

Solution

x = {0, -1.75}

See similar equations:

| -3(3p+5)-2(3-11p)=3(5+4p) | | 7(2x-1)=3(1-7x) | | 17x+y=90 | | x^3-20x-14=0 | | 4(2x+5)=3(x+5) | | 2/3(3x+6)-3= | | (6x^3y)/(2xy^2) | | 8+8x-12+3x=14+7x | | K=(1/16)k^2 | | 5x^2-49x+72=0 | | 500=x-(30x/100) | | x^2+10x+4y^2-32y=-88 | | 10y^4/b^5y*3b^2/4y | | 1/10x=-1/5 | | forx^2+10x+4y^2-32y=-88 | | (10y^4/b^5y)*(3b^2/4y) | | -3-19= | | x^2+10x+4y^2-32y+88=0 | | 5y=20y+84 | | x-(30x/100)=y | | 4x-7=4(x+4) | | n/-7=19--3 | | 24x-8-27x=2-9 | | 4x-5x+x-3+3x= | | 3f=4-4e | | 2l+0.7l=48 | | 16=-71.88x+-4.9x^2 | | U=5(8n+33)+7(n+1) | | 17+8m=89-m | | 5x+7x-(7x+9)= | | Y^2=1.25 | | 10x-2(x-1)=x+2+7x |

Equations solver categories