0=6x^2+6x-13

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


Simplifying
0 = 6x2 + 6x + -13

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

Solving
0 = -13 + 6x + 6x2

Solving for variable 'x'.

Combine like terms: 0 + 13 = 13
13 + -6x + -6x2 = -13 + 6x + 6x2 + 13 + -6x + -6x2

Reorder the terms:
13 + -6x + -6x2 = -13 + 13 + 6x + -6x + 6x2 + -6x2

Combine like terms: -13 + 13 = 0
13 + -6x + -6x2 = 0 + 6x + -6x + 6x2 + -6x2
13 + -6x + -6x2 = 6x + -6x + 6x2 + -6x2

Combine like terms: 6x + -6x = 0
13 + -6x + -6x2 = 0 + 6x2 + -6x2
13 + -6x + -6x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
13 + -6x + -6x2 = 0

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

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

Move the constant term to the right:

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

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

Combine like terms: -2.166666667 + 2.166666667 = 0.000000000
0.000000000 + x + x2 = 0 + 2.166666667
x + x2 = 0 + 2.166666667

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

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + x2 = 2.166666667 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + x2 = 2.166666667 + 0.25

Combine like terms: 2.166666667 + 0.25 = 2.416666667
1.25 + x2 = 2.416666667

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 2.416666667

Calculate the square root of the right side: 1.554563176

Break this problem into two subproblems by setting 
(x + 0.5) equal to 1.554563176 and -1.554563176.

Subproblem 1

x + 0.5 = 1.554563176 Simplifying x + 0.5 = 1.554563176 Reorder the terms: 0.5 + x = 1.554563176 Solving 0.5 + x = 1.554563176 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 1.554563176 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.554563176 + -0.5 x = 1.554563176 + -0.5 Combine like terms: 1.554563176 + -0.5 = 1.054563176 x = 1.054563176 Simplifying x = 1.054563176

Subproblem 2

x + 0.5 = -1.554563176 Simplifying x + 0.5 = -1.554563176 Reorder the terms: 0.5 + x = -1.554563176 Solving 0.5 + x = -1.554563176 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -1.554563176 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.554563176 + -0.5 x = -1.554563176 + -0.5 Combine like terms: -1.554563176 + -0.5 = -2.054563176 x = -2.054563176 Simplifying x = -2.054563176

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.054563176, -2.054563176}

See similar equations:

| 6(4-x)=-6 | | 36+9=x^2 | | log(19)=log(5)+log(x+6) | | 168/3 | | X-6y=34 | | 289+64=x^2 | | 27-x^2-6x=0 | | y=2x^2-(-12) | | X-9y=52 | | 3x^4-14x^3-49x^2+15x-105=0 | | x=(4/x)=5 | | y=2.5+20x | | y=-2.5+20x | | 2x+4y=-44 | | 3x^3+5x^2-27x-45=y | | 72x^5-200x^3=0 | | 5tanx+2cotx=7 | | x^6=6.2 | | 2n+yr=r-9g | | 17v-4+27=4v-18 | | x+7=169 | | 2log(6)5=log(6) | | x^2+10x-146=0 | | 2log(6)5= | | 51=3x+6 | | 7x^2-64x+9=0 | | -8x+y=63 | | 9x+6y=-21 | | x-.06=9.65 | | 8t-7=25 | | 64+225=s^2 | | (8)8+(15)15=(s)s |

Equations solver categories