6x^2-12x-5=0

Simple and best practice solution for 6x^2-12x-5=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^2-12x-5=0 equation:


Simplifying
6x2 + -12x + -5 = 0

Reorder the terms:
-5 + -12x + 6x2 = 0

Solving
-5 + -12x + 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'.
-0.8333333333 + -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 = 1.8333333333
1 + -2x + x2 = 1.8333333333

Factor a perfect square on the left side:
(x + -1)(x + -1) = 1.8333333333

Calculate the square root of the right side: 1.354006401

Break this problem into two subproblems by setting 
(x + -1) equal to 1.354006401 and -1.354006401.

Subproblem 1

x + -1 = 1.354006401 Simplifying x + -1 = 1.354006401 Reorder the terms: -1 + x = 1.354006401 Solving -1 + x = 1.354006401 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 = 1.354006401 + 1 Combine like terms: -1 + 1 = 0 0 + x = 1.354006401 + 1 x = 1.354006401 + 1 Combine like terms: 1.354006401 + 1 = 2.354006401 x = 2.354006401 Simplifying x = 2.354006401

Subproblem 2

x + -1 = -1.354006401 Simplifying x + -1 = -1.354006401 Reorder the terms: -1 + x = -1.354006401 Solving -1 + x = -1.354006401 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 = -1.354006401 + 1 Combine like terms: -1 + 1 = 0 0 + x = -1.354006401 + 1 x = -1.354006401 + 1 Combine like terms: -1.354006401 + 1 = -0.354006401 x = -0.354006401 Simplifying x = -0.354006401

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.354006401, -0.354006401}

See similar equations:

| 8x-9=1211x | | 2x=-3x+15 | | 49(2x-12)=38(3x+9) | | 12+-8z=-12 | | -10.6=x | | 8x-0=12+11x | | 14x+12=7x+35 | | 6.8(x-4)=-0.2x+21.8 | | 8x+4y=32 | | 5(a+6)=6+a | | 4(x-3)=-4x+52 | | x+0.77=9.3 | | -9m-[2(11-2m)+14]=7m | | 7x-1=139 | | 10=-2c+22 | | 12x-5=5x+16 | | 8x+y=21 | | 8p+p=11-3p | | 8x+x=21 | | (x+4)2=7 | | -6x-13x=95 | | 5(1+4m)-2m=13 | | 4x^2+11x+20=0 | | 8-5x+x=24 | | 3x^2-30=13x | | .4s=-16 | | 8x=3x+15 | | -7x+10=52 | | 2a=1.8(25+a) | | 18x+9=9x+30 | | 2d+5=47 | | -2=4-z-z |

Equations solver categories