49.7(1.00-x)(2.00-x)=2x^2

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Solution for 49.7(1.00-x)(2.00-x)=2x^2 equation:


Simplifying
49.7(1.00 + -1x)(2.00 + -1x) = 2x2

Multiply (1.00 + -1x) * (2.00 + -1x)
49.7(1.00(2.00 + -1x) + -1x * (2.00 + -1x)) = 2x2
49.7((2.00 * 1.00 + -1x * 1.00) + -1x * (2.00 + -1x)) = 2x2
49.7((2 + -1x) + -1x * (2.00 + -1x)) = 2x2
49.7(2 + -1x + (2.00 * -1x + -1x * -1x)) = 2x2
49.7(2 + -1x + (-2x + 1x2)) = 2x2

Combine like terms: -1x + -2x = -3x
49.7(2 + -3x + 1x2) = 2x2
(2 * 49.7 + -3x * 49.7 + 1x2 * 49.7) = 2x2
(99.4 + -149.1x + 49.7x2) = 2x2

Solving
99.4 + -149.1x + 49.7x2 = 2x2

Solving for variable 'x'.

Combine like terms: 49.7x2 + -2x2 = 47.7x2
99.4 + -149.1x + 47.7x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
99.4 + -149.1x + 47.7x2 = 0

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

Divide each side by '47.7'.
2.083857442 + -3.125786164x + x2 = 0

Move the constant term to the right:

Add '-2.083857442' to each side of the equation.
2.083857442 + -3.125786164x + -2.083857442 + x2 = 0 + -2.083857442

Reorder the terms:
2.083857442 + -2.083857442 + -3.125786164x + x2 = 0 + -2.083857442

Combine like terms: 2.083857442 + -2.083857442 = 0.000000000
0.000000000 + -3.125786164x + x2 = 0 + -2.083857442
-3.125786164x + x2 = 0 + -2.083857442

Combine like terms: 0 + -2.083857442 = -2.083857442
-3.125786164x + x2 = -2.083857442

The x term is -3.125786164x.  Take half its coefficient (-1.562893082).
Square it (2.442634786) and add it to both sides.

Add '2.442634786' to each side of the equation.
-3.125786164x + 2.442634786 + x2 = -2.083857442 + 2.442634786

Reorder the terms:
2.442634786 + -3.125786164x + x2 = -2.083857442 + 2.442634786

Combine like terms: -2.083857442 + 2.442634786 = 0.358777344
2.442634786 + -3.125786164x + x2 = 0.358777344

Factor a perfect square on the left side:
(x + -1.562893082)(x + -1.562893082) = 0.358777344

Calculate the square root of the right side: 0.598980253

Break this problem into two subproblems by setting 
(x + -1.562893082) equal to 0.598980253 and -0.598980253.

Subproblem 1

x + -1.562893082 = 0.598980253 Simplifying x + -1.562893082 = 0.598980253 Reorder the terms: -1.562893082 + x = 0.598980253 Solving -1.562893082 + x = 0.598980253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.562893082' to each side of the equation. -1.562893082 + 1.562893082 + x = 0.598980253 + 1.562893082 Combine like terms: -1.562893082 + 1.562893082 = 0.000000000 0.000000000 + x = 0.598980253 + 1.562893082 x = 0.598980253 + 1.562893082 Combine like terms: 0.598980253 + 1.562893082 = 2.161873335 x = 2.161873335 Simplifying x = 2.161873335

Subproblem 2

x + -1.562893082 = -0.598980253 Simplifying x + -1.562893082 = -0.598980253 Reorder the terms: -1.562893082 + x = -0.598980253 Solving -1.562893082 + x = -0.598980253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.562893082' to each side of the equation. -1.562893082 + 1.562893082 + x = -0.598980253 + 1.562893082 Combine like terms: -1.562893082 + 1.562893082 = 0.000000000 0.000000000 + x = -0.598980253 + 1.562893082 x = -0.598980253 + 1.562893082 Combine like terms: -0.598980253 + 1.562893082 = 0.963912829 x = 0.963912829 Simplifying x = 0.963912829

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.161873335, 0.963912829}

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