6x^2-12x=-5

Simple and best practice solution for 6x^2-12x=-5 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^2-12x=-5 equation:


Simplifying
6x2 + -12x = -5

Reorder the terms:
-12x + 6x2 = -5

Solving
-12x + 6x2 = -5

Solving for variable 'x'.

Reorder the terms:
5 + -12x + 6x2 = -5 + 5

Combine like terms: -5 + 5 = 0
5 + -12x + 6x2 = 0

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

Divide each side by '6'.
0.8333333333 + -2x + x2 = 0

Move the constant term to the right:

Add '-0.8333333333' to each side of the equation.
0.8333333333 + -2x + -0.8333333333 + x2 = 0 + -0.8333333333

Reorder the terms:
0.8333333333 + -0.8333333333 + -2x + x2 = 0 + -0.8333333333

Combine like terms: 0.8333333333 + -0.8333333333 = 0.0000000000
0.0000000000 + -2x + x2 = 0 + -0.8333333333
-2x + x2 = 0 + -0.8333333333

Combine like terms: 0 + -0.8333333333 = -0.8333333333
-2x + x2 = -0.8333333333

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -0.8333333333 + 1

Reorder the terms:
1 + -2x + x2 = -0.8333333333 + 1

Combine like terms: -0.8333333333 + 1 = 0.1666666667
1 + -2x + x2 = 0.1666666667

Factor a perfect square on the left side:
(x + -1)(x + -1) = 0.1666666667

Calculate the square root of the right side: 0.408248291

Break this problem into two subproblems by setting 
(x + -1) equal to 0.408248291 and -0.408248291.

Subproblem 1

x + -1 = 0.408248291 Simplifying x + -1 = 0.408248291 Reorder the terms: -1 + x = 0.408248291 Solving -1 + x = 0.408248291 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 0.408248291 + 1 Combine like terms: -1 + 1 = 0 0 + x = 0.408248291 + 1 x = 0.408248291 + 1 Combine like terms: 0.408248291 + 1 = 1.408248291 x = 1.408248291 Simplifying x = 1.408248291

Subproblem 2

x + -1 = -0.408248291 Simplifying x + -1 = -0.408248291 Reorder the terms: -1 + x = -0.408248291 Solving -1 + x = -0.408248291 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -0.408248291 + 1 Combine like terms: -1 + 1 = 0 0 + x = -0.408248291 + 1 x = -0.408248291 + 1 Combine like terms: -0.408248291 + 1 = 0.591751709 x = 0.591751709 Simplifying x = 0.591751709

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.408248291, 0.591751709}

See similar equations:

| (5n-15)/(4n^2-16n+16)=(1)/(4n-8)+(3)/(2n-4) | | 7x-2-5x=2x+2 | | -9.5(b+1)=-4.5b+15.5 | | 74.6+c=82 | | 2y-3y-x+x=5-9 | | 3/5x+12=4/6x-2 | | 6x+3=8+x | | x^3-5x+3=15 | | 1/3(4b+1)=5 | | x^3-5x+3=22 | | 675=x+238 | | 7y-8y=5y+4 | | 3n-2/5=-7 | | -9(x-3)-3x=3x+3(4x+9) | | j-7=3 | | x^3-5x+3=14.8 | | 2y/y+y/4=22 | | x^3-5x=14.8 | | x/-4-8=-42 | | 6x+3=14-6n | | (x+3)(x-3)=(x+6)2 | | 2(x+3)-4=(x+1) | | 3-x^2-2x=0 | | 7-p=15 | | 3x^2-6x=-7 | | x+(-6)=13 | | 15y^2-18y-25=0 | | 8x=44 | | 16-(-2x-4)-(5x-3x+2)=-4x-(-8x+2) | | 1=2(5a) | | 22x=12x+6 | | x/4-5=-9 |

Equations solver categories