-6u^2-3u+8=0

Simple and best practice solution for -6u^2-3u+8=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 -6u^2-3u+8=0 equation:


Simplifying
-6u2 + -3u + 8 = 0

Reorder the terms:
8 + -3u + -6u2 = 0

Solving
8 + -3u + -6u2 = 0

Solving for variable 'u'.

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

Divide each side by '-6'.
-1.333333333 + 0.5u + u2 = 0

Move the constant term to the right:

Add '1.333333333' to each side of the equation.
-1.333333333 + 0.5u + 1.333333333 + u2 = 0 + 1.333333333

Reorder the terms:
-1.333333333 + 1.333333333 + 0.5u + u2 = 0 + 1.333333333

Combine like terms: -1.333333333 + 1.333333333 = 0.000000000
0.000000000 + 0.5u + u2 = 0 + 1.333333333
0.5u + u2 = 0 + 1.333333333

Combine like terms: 0 + 1.333333333 = 1.333333333
0.5u + u2 = 1.333333333

The u term is 0.5u.  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.
0.5u + 0.0625 + u2 = 1.333333333 + 0.0625

Reorder the terms:
0.0625 + 0.5u + u2 = 1.333333333 + 0.0625

Combine like terms: 1.333333333 + 0.0625 = 1.395833333
0.0625 + 0.5u + u2 = 1.395833333

Factor a perfect square on the left side:
(u + 0.25)(u + 0.25) = 1.395833333

Calculate the square root of the right side: 1.181453906

Break this problem into two subproblems by setting 
(u + 0.25) equal to 1.181453906 and -1.181453906.

Subproblem 1

u + 0.25 = 1.181453906 Simplifying u + 0.25 = 1.181453906 Reorder the terms: 0.25 + u = 1.181453906 Solving 0.25 + u = 1.181453906 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + u = 1.181453906 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + u = 1.181453906 + -0.25 u = 1.181453906 + -0.25 Combine like terms: 1.181453906 + -0.25 = 0.931453906 u = 0.931453906 Simplifying u = 0.931453906

Subproblem 2

u + 0.25 = -1.181453906 Simplifying u + 0.25 = -1.181453906 Reorder the terms: 0.25 + u = -1.181453906 Solving 0.25 + u = -1.181453906 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + u = -1.181453906 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + u = -1.181453906 + -0.25 u = -1.181453906 + -0.25 Combine like terms: -1.181453906 + -0.25 = -1.431453906 u = -1.431453906 Simplifying u = -1.431453906

Solution

The solution to the problem is based on the solutions from the subproblems. u = {0.931453906, -1.431453906}

See similar equations:

| y-7=.33(x-9) | | p+3=37 | | 5m-7+3m=19+7m | | 38+7e=8(e+4) | | 2(r+2)-8=8 | | -30=m-12 | | -41=3x-7 | | b-2b-10=-2b-b | | logx=1-log(x-3) | | 4.7x+56.8=31.0-8.2x | | 5-9x/6=-2 | | 14t+19t=33 | | 10(x+1/2)=3x+5x+7x | | 2r-1= | | 41=3x-7 | | 26n+26n-49n-3=90 | | x+(x+2)=210 | | s^3=729 | | 23c+19c-38c=32 | | 5-4x*2=0 | | 9(1/3)=5/3n | | 4j-2j-j=15 | | 8-3x/2=5 | | x-2y+y-6x= | | -3x=-3+2y | | 7/16=m/13 | | -10-x=23 | | 13z+3z+z-7z-1=19 | | 2/3x+7=-4/5x-1 | | -2y-3x+3=0 | | -9/9 | | 2r-= |

Equations solver categories