6x^2-x-16=0

Simple and best practice solution for 6x^2-x-16=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-x-16=0 equation: 


Simplifying
6x2 + -1x + -16 = 0

Reorder the terms:
-16 + -1x + 6x2 = 0

Solving
-16 + -1x + 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'.
-2.666666667 + -0.1666666667x + x2 = 0

Move the constant term to the right:

Add '2.666666667' to each side of the equation.
-2.666666667 + -0.1666666667x + 2.666666667 + x2 = 0 + 2.666666667

Reorder the terms:
-2.666666667 + 2.666666667 + -0.1666666667x + x2 = 0 + 2.666666667

Combine like terms: -2.666666667 + 2.666666667 = 0.000000000
0.000000000 + -0.1666666667x + x2 = 0 + 2.666666667
-0.1666666667x + x2 = 0 + 2.666666667

Combine like terms: 0 + 2.666666667 = 2.666666667
-0.1666666667x + x2 = 2.666666667

The x term is -0.1666666667x.  Take half its coefficient (-0.08333333335).
Square it (0.006944444447) and add it to both sides.

Add '0.006944444447' to each side of the equation.
-0.1666666667x + 0.006944444447 + x2 = 2.666666667 + 0.006944444447

Reorder the terms:
0.006944444447 + -0.1666666667x + x2 = 2.666666667 + 0.006944444447

Combine like terms: 2.666666667 + 0.006944444447 = 2.673611111447
0.006944444447 + -0.1666666667x + x2 = 2.673611111447

Factor a perfect square on the left side:
(x + -0.08333333335)(x + -0.08333333335) = 2.673611111447

Calculate the square root of the right side: 1.635118073

Break this problem into two subproblems by setting 
(x + -0.08333333335) equal to 1.635118073 and -1.635118073.


Subproblem 1
x + -0.08333333335 = 1.635118073

Simplifying
x + -0.08333333335 = 1.635118073

Reorder the terms:
-0.08333333335 + x = 1.635118073

Solving
-0.08333333335 + x = 1.635118073

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '0.08333333335' to each side of the equation.
-0.08333333335 + 0.08333333335 + x = 1.635118073 + 0.08333333335

Combine like terms: -0.08333333335 + 0.08333333335 = 0.00000000000
0.00000000000 + x = 1.635118073 + 0.08333333335
x = 1.635118073 + 0.08333333335

Combine like terms: 1.635118073 + 0.08333333335 = 1.71845140635
x = 1.71845140635

Simplifying
x = 1.71845140635


Subproblem 2
x + -0.08333333335 = -1.635118073

Simplifying
x + -0.08333333335 = -1.635118073

Reorder the terms:
-0.08333333335 + x = -1.635118073

Solving
-0.08333333335 + x = -1.635118073

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '0.08333333335' to each side of the equation.
-0.08333333335 + 0.08333333335 + x = -1.635118073 + 0.08333333335

Combine like terms: -0.08333333335 + 0.08333333335 = 0.00000000000
0.00000000000 + x = -1.635118073 + 0.08333333335
x = -1.635118073 + 0.08333333335

Combine like terms: -1.635118073 + 0.08333333335 = -1.55178473965
x = -1.55178473965

Simplifying
x = -1.55178473965


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {1.71845140635, -1.55178473965}

See similar equations:

| 3e^7x=780 | | 4(1+5t)=24 | | 10x-7+18=6 | | 2x-8x+1=9-6x | | 5(r-12)-24=3(r+2) | | X+2x=228 | | 4z+10yx=0 | | -9+4r=43 | | 2/3v-6=6=2/3v | | x^2+30x-136=0 | | 12-4x+14=10 | | 12y^2+31y+20=0 | | x+(x*0.2)=80 | | x+(x*2)=80 | | 1=0.1x-0.6x-29 | | -2+4=33y-3 | | (-ln(x^2-4))/2 | | 12y+8=6y-5 | | 2x-ln(x^2-4)=0 | | 8=w/4 | | 4(r+1)-(3r+5)=2 | | 4z^4(5-8z^5)= | | 12-2(x-7)=x-13 | | 3-7x=4x+2 | | F(x)=-2(-3)+4 | | 8y+28=6(y+2) | | 14x-7y=8 | | 1/2(6n-8)=-10 | | -4=5+w | | -16x^2+114x-200=o | | 2=-7-3n | | -6=2/v |

Equations solver categories