12u^2+3u=32

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Solution for 12u^2+3u=32 equation:


Simplifying
12u2 + 3u = 32

Reorder the terms:
3u + 12u2 = 32

Solving
3u + 12u2 = 32

Solving for variable 'u'.

Reorder the terms:
-32 + 3u + 12u2 = 32 + -32

Combine like terms: 32 + -32 = 0
-32 + 3u + 12u2 = 0

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

Divide each side by '12'.
-2.666666667 + 0.25u + u2 = 0

Move the constant term to the right:

Add '2.666666667' to each side of the equation.
-2.666666667 + 0.25u + 2.666666667 + u2 = 0 + 2.666666667

Reorder the terms:
-2.666666667 + 2.666666667 + 0.25u + u2 = 0 + 2.666666667

Combine like terms: -2.666666667 + 2.666666667 = 0.000000000
0.000000000 + 0.25u + u2 = 0 + 2.666666667
0.25u + u2 = 0 + 2.666666667

Combine like terms: 0 + 2.666666667 = 2.666666667
0.25u + u2 = 2.666666667

The u term is 0.25u.  Take half its coefficient (0.125).
Square it (0.015625) and add it to both sides.

Add '0.015625' to each side of the equation.
0.25u + 0.015625 + u2 = 2.666666667 + 0.015625

Reorder the terms:
0.015625 + 0.25u + u2 = 2.666666667 + 0.015625

Combine like terms: 2.666666667 + 0.015625 = 2.682291667
0.015625 + 0.25u + u2 = 2.682291667

Factor a perfect square on the left side:
(u + 0.125)(u + 0.125) = 2.682291667

Calculate the square root of the right side: 1.637770334

Break this problem into two subproblems by setting 
(u + 0.125) equal to 1.637770334 and -1.637770334.

Subproblem 1

u + 0.125 = 1.637770334 Simplifying u + 0.125 = 1.637770334 Reorder the terms: 0.125 + u = 1.637770334 Solving 0.125 + u = 1.637770334 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-0.125' to each side of the equation. 0.125 + -0.125 + u = 1.637770334 + -0.125 Combine like terms: 0.125 + -0.125 = 0.000 0.000 + u = 1.637770334 + -0.125 u = 1.637770334 + -0.125 Combine like terms: 1.637770334 + -0.125 = 1.512770334 u = 1.512770334 Simplifying u = 1.512770334

Subproblem 2

u + 0.125 = -1.637770334 Simplifying u + 0.125 = -1.637770334 Reorder the terms: 0.125 + u = -1.637770334 Solving 0.125 + u = -1.637770334 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-0.125' to each side of the equation. 0.125 + -0.125 + u = -1.637770334 + -0.125 Combine like terms: 0.125 + -0.125 = 0.000 0.000 + u = -1.637770334 + -0.125 u = -1.637770334 + -0.125 Combine like terms: -1.637770334 + -0.125 = -1.762770334 u = -1.762770334 Simplifying u = -1.762770334

Solution

The solution to the problem is based on the solutions from the subproblems. u = {1.512770334, -1.762770334}

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