471.23=6.28h^2+6.28h+2h

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Solution for 471.23=6.28h^2+6.28h+2h equation:


Simplifying
471.23 = 6.28h2 + 6.28h + 2h

Reorder the terms:
471.23 = 6.28h + 2h + 6.28h2

Combine like terms: 6.28h + 2h = 8.28h
471.23 = 8.28h + 6.28h2

Solving
471.23 = 8.28h + 6.28h2

Solving for variable 'h'.

Reorder the terms:
471.23 + -8.28h + -6.28h2 = 8.28h + -8.28h + 6.28h2 + -6.28h2

Combine like terms: 8.28h + -8.28h = 0.00
471.23 + -8.28h + -6.28h2 = 0.00 + 6.28h2 + -6.28h2
471.23 + -8.28h + -6.28h2 = 6.28h2 + -6.28h2

Combine like terms: 6.28h2 + -6.28h2 = 0.00
471.23 + -8.28h + -6.28h2 = 0.00

Begin completing the square.  Divide all terms by
-6.28 the coefficient of the squared term: 

Divide each side by '-6.28'.
-75.0366242 + 1.318471338h + h2 = 0

Move the constant term to the right:

Add '75.0366242' to each side of the equation.
-75.0366242 + 1.318471338h + 75.0366242 + h2 = 0 + 75.0366242

Reorder the terms:
-75.0366242 + 75.0366242 + 1.318471338h + h2 = 0 + 75.0366242

Combine like terms: -75.0366242 + 75.0366242 = 0.0000000
0.0000000 + 1.318471338h + h2 = 0 + 75.0366242
1.318471338h + h2 = 0 + 75.0366242

Combine like terms: 0 + 75.0366242 = 75.0366242
1.318471338h + h2 = 75.0366242

The h term is 1.318471338h.  Take half its coefficient (0.659235669).
Square it (0.4345916673) and add it to both sides.

Add '0.4345916673' to each side of the equation.
1.318471338h + 0.4345916673 + h2 = 75.0366242 + 0.4345916673

Reorder the terms:
0.4345916673 + 1.318471338h + h2 = 75.0366242 + 0.4345916673

Combine like terms: 75.0366242 + 0.4345916673 = 75.4712158673
0.4345916673 + 1.318471338h + h2 = 75.4712158673

Factor a perfect square on the left side:
(h + 0.659235669)(h + 0.659235669) = 75.4712158673

Calculate the square root of the right side: 8.6874171

Break this problem into two subproblems by setting 
(h + 0.659235669) equal to 8.6874171 and -8.6874171.

Subproblem 1

h + 0.659235669 = 8.6874171 Simplifying h + 0.659235669 = 8.6874171 Reorder the terms: 0.659235669 + h = 8.6874171 Solving 0.659235669 + h = 8.6874171 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-0.659235669' to each side of the equation. 0.659235669 + -0.659235669 + h = 8.6874171 + -0.659235669 Combine like terms: 0.659235669 + -0.659235669 = 0.000000000 0.000000000 + h = 8.6874171 + -0.659235669 h = 8.6874171 + -0.659235669 Combine like terms: 8.6874171 + -0.659235669 = 8.028181431 h = 8.028181431 Simplifying h = 8.028181431

Subproblem 2

h + 0.659235669 = -8.6874171 Simplifying h + 0.659235669 = -8.6874171 Reorder the terms: 0.659235669 + h = -8.6874171 Solving 0.659235669 + h = -8.6874171 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-0.659235669' to each side of the equation. 0.659235669 + -0.659235669 + h = -8.6874171 + -0.659235669 Combine like terms: 0.659235669 + -0.659235669 = 0.000000000 0.000000000 + h = -8.6874171 + -0.659235669 h = -8.6874171 + -0.659235669 Combine like terms: -8.6874171 + -0.659235669 = -9.346652769 h = -9.346652769 Simplifying h = -9.346652769

Solution

The solution to the problem is based on the solutions from the subproblems. h = {8.028181431, -9.346652769}

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