20.28+32x^2-50.96x=0

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Solution for 20.28+32x^2-50.96x=0 equation:


Simplifying
20.28 + 32x2 + -50.96x = 0

Reorder the terms:
20.28 + -50.96x + 32x2 = 0

Solving
20.28 + -50.96x + 32x2 = 0

Solving for variable 'x'.

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

Divide each side by '32'.
0.63375 + -1.5925x + x2 = 0

Move the constant term to the right:

Add '-0.63375' to each side of the equation.
0.63375 + -1.5925x + -0.63375 + x2 = 0 + -0.63375

Reorder the terms:
0.63375 + -0.63375 + -1.5925x + x2 = 0 + -0.63375

Combine like terms: 0.63375 + -0.63375 = 0.00000
0.00000 + -1.5925x + x2 = 0 + -0.63375
-1.5925x + x2 = 0 + -0.63375

Combine like terms: 0 + -0.63375 = -0.63375
-1.5925x + x2 = -0.63375

The x term is -1.5925x.  Take half its coefficient (-0.79625).
Square it (0.6340140625) and add it to both sides.

Add '0.6340140625' to each side of the equation.
-1.5925x + 0.6340140625 + x2 = -0.63375 + 0.6340140625

Reorder the terms:
0.6340140625 + -1.5925x + x2 = -0.63375 + 0.6340140625

Combine like terms: -0.63375 + 0.6340140625 = 0.0002640625
0.6340140625 + -1.5925x + x2 = 0.0002640625

Factor a perfect square on the left side:
(x + -0.79625)(x + -0.79625) = 0.0002640625

Calculate the square root of the right side: 0.01625

Break this problem into two subproblems by setting 
(x + -0.79625) equal to 0.01625 and -0.01625.

Subproblem 1

x + -0.79625 = 0.01625 Simplifying x + -0.79625 = 0.01625 Reorder the terms: -0.79625 + x = 0.01625 Solving -0.79625 + x = 0.01625 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.79625' to each side of the equation. -0.79625 + 0.79625 + x = 0.01625 + 0.79625 Combine like terms: -0.79625 + 0.79625 = 0.00000 0.00000 + x = 0.01625 + 0.79625 x = 0.01625 + 0.79625 Combine like terms: 0.01625 + 0.79625 = 0.8125 x = 0.8125 Simplifying x = 0.8125

Subproblem 2

x + -0.79625 = -0.01625 Simplifying x + -0.79625 = -0.01625 Reorder the terms: -0.79625 + x = -0.01625 Solving -0.79625 + x = -0.01625 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.79625' to each side of the equation. -0.79625 + 0.79625 + x = -0.01625 + 0.79625 Combine like terms: -0.79625 + 0.79625 = 0.00000 0.00000 + x = -0.01625 + 0.79625 x = -0.01625 + 0.79625 Combine like terms: -0.01625 + 0.79625 = 0.78 x = 0.78 Simplifying x = 0.78

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8125, 0.78}

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