73x+63=20x^2

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Solution for 73x+63=20x^2 equation:


Simplifying
73x + 63 = 20x2

Reorder the terms:
63 + 73x = 20x2

Solving
63 + 73x = 20x2

Solving for variable 'x'.

Combine like terms: 20x2 + -20x2 = 0
63 + 73x + -20x2 = 0

Begin completing the square.  Divide all terms by
-20 the coefficient of the squared term: 

Divide each side by '-20'.
-3.15 + -3.65x + x2 = 0

Move the constant term to the right:

Add '3.15' to each side of the equation.
-3.15 + -3.65x + 3.15 + x2 = 0 + 3.15

Reorder the terms:
-3.15 + 3.15 + -3.65x + x2 = 0 + 3.15

Combine like terms: -3.15 + 3.15 = 0.00
0.00 + -3.65x + x2 = 0 + 3.15
-3.65x + x2 = 0 + 3.15

Combine like terms: 0 + 3.15 = 3.15
-3.65x + x2 = 3.15

The x term is -3.65x.  Take half its coefficient (-1.825).
Square it (3.330625) and add it to both sides.

Add '3.330625' to each side of the equation.
-3.65x + 3.330625 + x2 = 3.15 + 3.330625

Reorder the terms:
3.330625 + -3.65x + x2 = 3.15 + 3.330625

Combine like terms: 3.15 + 3.330625 = 6.480625
3.330625 + -3.65x + x2 = 6.480625

Factor a perfect square on the left side:
(x + -1.825)(x + -1.825) = 6.480625

Calculate the square root of the right side: 2.545707171

Break this problem into two subproblems by setting 
(x + -1.825) equal to 2.545707171 and -2.545707171.

Subproblem 1

x + -1.825 = 2.545707171 Simplifying x + -1.825 = 2.545707171 Reorder the terms: -1.825 + x = 2.545707171 Solving -1.825 + x = 2.545707171 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.825' to each side of the equation. -1.825 + 1.825 + x = 2.545707171 + 1.825 Combine like terms: -1.825 + 1.825 = 0.000 0.000 + x = 2.545707171 + 1.825 x = 2.545707171 + 1.825 Combine like terms: 2.545707171 + 1.825 = 4.370707171 x = 4.370707171 Simplifying x = 4.370707171

Subproblem 2

x + -1.825 = -2.545707171 Simplifying x + -1.825 = -2.545707171 Reorder the terms: -1.825 + x = -2.545707171 Solving -1.825 + x = -2.545707171 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.825' to each side of the equation. -1.825 + 1.825 + x = -2.545707171 + 1.825 Combine like terms: -1.825 + 1.825 = 0.000 0.000 + x = -2.545707171 + 1.825 x = -2.545707171 + 1.825 Combine like terms: -2.545707171 + 1.825 = -0.720707171 x = -0.720707171 Simplifying x = -0.720707171

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.370707171, -0.720707171}

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