6x^2+13x+4=0

Simple and best practice solution for 6x^2+13x+4=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 6x^2+13x+4=0 equation:


Simplifying
6x2 + 13x + 4 = 0

Reorder the terms:
4 + 13x + 6x2 = 0

Solving
4 + 13x + 6x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
6 the coefficient of the squared term: 

Divide each side by '6'.
0.6666666667 + 2.166666667x + x2 = 0

Move the constant term to the right:

Add '-0.6666666667' to each side of the equation.
0.6666666667 + 2.166666667x + -0.6666666667 + x2 = 0 + -0.6666666667

Reorder the terms:
0.6666666667 + -0.6666666667 + 2.166666667x + x2 = 0 + -0.6666666667

Combine like terms: 0.6666666667 + -0.6666666667 = 0.0000000000
0.0000000000 + 2.166666667x + x2 = 0 + -0.6666666667
2.166666667x + x2 = 0 + -0.6666666667

Combine like terms: 0 + -0.6666666667 = -0.6666666667
2.166666667x + x2 = -0.6666666667

The x term is 2.166666667x.  Take half its coefficient (1.083333334).
Square it (1.173611113) and add it to both sides.

Add '1.173611113' to each side of the equation.
2.166666667x + 1.173611113 + x2 = -0.6666666667 + 1.173611113

Reorder the terms:
1.173611113 + 2.166666667x + x2 = -0.6666666667 + 1.173611113

Combine like terms: -0.6666666667 + 1.173611113 = 0.5069444463
1.173611113 + 2.166666667x + x2 = 0.5069444463

Factor a perfect square on the left side:
(x + 1.083333334)(x + 1.083333334) = 0.5069444463

Calculate the square root of the right side: 0.712000313

Break this problem into two subproblems by setting 
(x + 1.083333334) equal to 0.712000313 and -0.712000313.

Subproblem 1

x + 1.083333334 = 0.712000313 Simplifying x + 1.083333334 = 0.712000313 Reorder the terms: 1.083333334 + x = 0.712000313 Solving 1.083333334 + x = 0.712000313 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.083333334' to each side of the equation. 1.083333334 + -1.083333334 + x = 0.712000313 + -1.083333334 Combine like terms: 1.083333334 + -1.083333334 = 0.000000000 0.000000000 + x = 0.712000313 + -1.083333334 x = 0.712000313 + -1.083333334 Combine like terms: 0.712000313 + -1.083333334 = -0.371333021 x = -0.371333021 Simplifying x = -0.371333021

Subproblem 2

x + 1.083333334 = -0.712000313 Simplifying x + 1.083333334 = -0.712000313 Reorder the terms: 1.083333334 + x = -0.712000313 Solving 1.083333334 + x = -0.712000313 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.083333334' to each side of the equation. 1.083333334 + -1.083333334 + x = -0.712000313 + -1.083333334 Combine like terms: 1.083333334 + -1.083333334 = 0.000000000 0.000000000 + x = -0.712000313 + -1.083333334 x = -0.712000313 + -1.083333334 Combine like terms: -0.712000313 + -1.083333334 = -1.795333647 x = -1.795333647 Simplifying x = -1.795333647

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.371333021, -1.795333647}

See similar equations:

| 17h^2+4h-21=0 | | 10x+1-4x=7 | | 9g^2+45g+14=0 | | 3x-7=1-x | | p(x)=(x^4+x^3-5x^2+23x-20) | | 5(x-2)=3x-11 | | 2[5(x+3)-(x+1)]=3(1+x) | | 9(t-4)+5t=7(2t+4)-10 | | 2+5x-3-2x+8=8 | | 10x^2+0x-10=0 | | 5x-3=-18x | | 3(x+4)=3(x+5) | | 2.5x-12=59 | | 9x*9x=49 | | 2x^2-3xy-2y^2=12 | | 3xy*4=0 | | 3w+14=7w-14 | | 176-3x=33x+16 | | -10(2-x)=5(3x+1) | | -86-8x=10x-8x | | 4(-3y+7)-8y=48 | | 3a+7=10a | | 3(4x+3)+5=12x+14 | | 65-4x=23x+17 | | 2.5x+32.9=2.3-12.8x | | -3(x-8)+7x=12 | | -4(2n-5)=-8-20 | | -7(-2+4x)=0 | | 12-8x=78-22x | | .2x+1.2=1.25 | | (4x-7)(5x+6)=0 | | 4x-3=1/2(4x-2) |

Equations solver categories