6x^2-3x-4=

Simple and best practice solution for 6x^2-3x-4= 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^2-3x-4= equation:


Simplifying
6x2 + -3x + -4 = 0

Reorder the terms:
-4 + -3x + 6x2 = 0

Solving
-4 + -3x + 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 + -0.5x + x2 = 0

Move the constant term to the right:

Add '0.6666666667' to each side of the equation.
-0.6666666667 + -0.5x + 0.6666666667 + x2 = 0 + 0.6666666667

Reorder the terms:
-0.6666666667 + 0.6666666667 + -0.5x + x2 = 0 + 0.6666666667

Combine like terms: -0.6666666667 + 0.6666666667 = 0.0000000000
0.0000000000 + -0.5x + x2 = 0 + 0.6666666667
-0.5x + x2 = 0 + 0.6666666667

Combine like terms: 0 + 0.6666666667 = 0.6666666667
-0.5x + x2 = 0.6666666667

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 0.6666666667 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 0.6666666667 + 0.0625

Combine like terms: 0.6666666667 + 0.0625 = 0.7291666667
0.0625 + -0.5x + x2 = 0.7291666667

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 0.7291666667

Calculate the square root of the right side: 0.853912564

Break this problem into two subproblems by setting 
(x + -0.25) equal to 0.853912564 and -0.853912564.

Subproblem 1

x + -0.25 = 0.853912564 Simplifying x + -0.25 = 0.853912564 Reorder the terms: -0.25 + x = 0.853912564 Solving -0.25 + x = 0.853912564 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 0.853912564 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 0.853912564 + 0.25 x = 0.853912564 + 0.25 Combine like terms: 0.853912564 + 0.25 = 1.103912564 x = 1.103912564 Simplifying x = 1.103912564

Subproblem 2

x + -0.25 = -0.853912564 Simplifying x + -0.25 = -0.853912564 Reorder the terms: -0.25 + x = -0.853912564 Solving -0.25 + x = -0.853912564 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -0.853912564 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -0.853912564 + 0.25 x = -0.853912564 + 0.25 Combine like terms: -0.853912564 + 0.25 = -0.603912564 x = -0.603912564 Simplifying x = -0.603912564

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.103912564, -0.603912564}

See similar equations:

| 8(10-5)=40 | | 6p^2=3p | | 3x+7=9+8x | | 6(x-2)=8x-10-3x | | 14x+12x-3= | | -2x/3+9=-7 | | -3t-8+7t=34+9+-2 | | 0.2b+0.6=12 | | 35-5x=x+17 | | a-1.2b=-3 | | a-1.2=-3 | | 2(15-m)=60-16 | | 2x-3(x+4)=27 | | 22-x=3(x-2) | | -5-11=8x+15-7x | | (1.2x+6)=(3.2x+8) | | x*(x-3)-(x-2)(x+4)=2x | | 5z-7-2z+4= | | 3-4x=-10x+10 | | 7m+32=1-m | | px^2-49=0 | | 8x+4y=68 | | 5(x+4)-2x=-7(x-3)-19 | | 696=3x | | 2(y+6)-2=22 | | O(18)=2n-1 | | 4x^3+12x^2-x-3= | | 0(18)=2n-1 | | -7r+-2.3+0.7r+3.1r+5= | | -6(6z+8)+5(z-3)= | | 3y+(1-y)-y=-6 | | 2(h-8)-h=-16 |

Equations solver categories