3x^2+12x=3

Simple and best practice solution for 3x^2+12x=3 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 3x^2+12x=3 equation:


Simplifying
3x2 + 12x = 3

Reorder the terms:
12x + 3x2 = 3

Solving
12x + 3x2 = 3

Solving for variable 'x'.

Reorder the terms:
-3 + 12x + 3x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + 12x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-1 + 4x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-1 + 4x + x2)' equal to zero and attempt to solve: Simplifying -1 + 4x + x2 = 0 Solving -1 + 4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '1' to each side of the equation. -1 + 4x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + 4x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 4x + x2 = 0 + 1 4x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 4x + x2 = 1 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = 1 + 4 Reorder the terms: 4 + 4x + x2 = 1 + 4 Combine like terms: 1 + 4 = 5 4 + 4x + x2 = 5 Factor a perfect square on the left side: (x + 2)(x + 2) = 5 Calculate the square root of the right side: 2.236067978 Break this problem into two subproblems by setting (x + 2) equal to 2.236067978 and -2.236067978.

Subproblem 1

x + 2 = 2.236067978 Simplifying x + 2 = 2.236067978 Reorder the terms: 2 + x = 2.236067978 Solving 2 + x = 2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 2.236067978 + -2 Combine like terms: 2 + -2 = 0 0 + x = 2.236067978 + -2 x = 2.236067978 + -2 Combine like terms: 2.236067978 + -2 = 0.236067978 x = 0.236067978 Simplifying x = 0.236067978

Subproblem 2

x + 2 = -2.236067978 Simplifying x + 2 = -2.236067978 Reorder the terms: 2 + x = -2.236067978 Solving 2 + x = -2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -2.236067978 + -2 Combine like terms: 2 + -2 = 0 0 + x = -2.236067978 + -2 x = -2.236067978 + -2 Combine like terms: -2.236067978 + -2 = -4.236067978 x = -4.236067978 Simplifying x = -4.236067978

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.236067978, -4.236067978}

Solution

x = {0.236067978, -4.236067978}

See similar equations:

| 14=5x-10 | | 3+(2k+1)=m | | 3+5(x-6)=4-5(x-2) | | 3y^2+11y+6=0 | | 2-2+3= | | [8x+5]+13=5 | | 6.3x-3.9=15.0 | | 5(2n+1)=8(3n+6)+6 | | 3(y-1)=-2y | | 7x-48=22 | | 6(40)+50=200+10(10)+5 | | 8x+20=284 | | 2u^2=-5u-2 | | x-0.2x+0.06(x-02x)=66.91 | | 6x=200+10x | | 6x+10=201+10x | | 3x-50=70 | | 6x+10=200+10x+1 | | 0.02(y-5)+0.14y=0.08y-0.05(10) | | 3+m=2m | | -6(v+4)+3v+5=6v+8 | | 8(7+x)= | | 4(x+4)+14=15 | | 60=5+11y | | 2x^2+4x-165=0 | | 349683.713=732.216x^2+2687.049x+3056.333 | | 3(5Z-1)-3(Z+1)=7(2+1) | | 288661.199=732.216x^2+2687.049x+3056.333 | | (5-v)(5v+3)=0 | | 5(6z-1)-2(z+7)=12(z+1) | | -5y(y-2)(y-8)=0 | | 40=.01x^2+.344x+28.74 |

Equations solver categories