1.12=0.64+0.63x+0.53x^2

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Solution for 1.12=0.64+0.63x+0.53x^2 equation:


Simplifying
1.12 = 0.64 + 0.63x + 0.53x2

Solving
1.12 = 0.64 + 0.63x + 0.53x2

Solving for variable 'x'.

Combine like terms: 1.12 + -0.64 = 0.48
0.48 + -0.63x + -0.53x2 = 0.64 + 0.63x + 0.53x2 + -0.64 + -0.63x + -0.53x2

Reorder the terms:
0.48 + -0.63x + -0.53x2 = 0.64 + -0.64 + 0.63x + -0.63x + 0.53x2 + -0.53x2

Combine like terms: 0.64 + -0.64 = 0.00
0.48 + -0.63x + -0.53x2 = 0.00 + 0.63x + -0.63x + 0.53x2 + -0.53x2
0.48 + -0.63x + -0.53x2 = 0.63x + -0.63x + 0.53x2 + -0.53x2

Combine like terms: 0.63x + -0.63x = 0.00
0.48 + -0.63x + -0.53x2 = 0.00 + 0.53x2 + -0.53x2
0.48 + -0.63x + -0.53x2 = 0.53x2 + -0.53x2

Combine like terms: 0.53x2 + -0.53x2 = 0.00
0.48 + -0.63x + -0.53x2 = 0.00

Begin completing the square.  Divide all terms by
-0.53 the coefficient of the squared term: 

Divide each side by '-0.53'.
-0.9056603774 + 1.188679245x + x2 = 0

Move the constant term to the right:

Add '0.9056603774' to each side of the equation.
-0.9056603774 + 1.188679245x + 0.9056603774 + x2 = 0 + 0.9056603774

Reorder the terms:
-0.9056603774 + 0.9056603774 + 1.188679245x + x2 = 0 + 0.9056603774

Combine like terms: -0.9056603774 + 0.9056603774 = 0.0000000000
0.0000000000 + 1.188679245x + x2 = 0 + 0.9056603774
1.188679245x + x2 = 0 + 0.9056603774

Combine like terms: 0 + 0.9056603774 = 0.9056603774
1.188679245x + x2 = 0.9056603774

The x term is 1.188679245x.  Take half its coefficient (0.5943396225).
Square it (0.3532395869) and add it to both sides.

Add '0.3532395869' to each side of the equation.
1.188679245x + 0.3532395869 + x2 = 0.9056603774 + 0.3532395869

Reorder the terms:
0.3532395869 + 1.188679245x + x2 = 0.9056603774 + 0.3532395869

Combine like terms: 0.9056603774 + 0.3532395869 = 1.2588999643
0.3532395869 + 1.188679245x + x2 = 1.2588999643

Factor a perfect square on the left side:
(x + 0.5943396225)(x + 0.5943396225) = 1.2588999643

Calculate the square root of the right side: 1.122007114

Break this problem into two subproblems by setting 
(x + 0.5943396225) equal to 1.122007114 and -1.122007114.

Subproblem 1

x + 0.5943396225 = 1.122007114 Simplifying x + 0.5943396225 = 1.122007114 Reorder the terms: 0.5943396225 + x = 1.122007114 Solving 0.5943396225 + x = 1.122007114 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5943396225' to each side of the equation. 0.5943396225 + -0.5943396225 + x = 1.122007114 + -0.5943396225 Combine like terms: 0.5943396225 + -0.5943396225 = 0.0000000000 0.0000000000 + x = 1.122007114 + -0.5943396225 x = 1.122007114 + -0.5943396225 Combine like terms: 1.122007114 + -0.5943396225 = 0.5276674915 x = 0.5276674915 Simplifying x = 0.5276674915

Subproblem 2

x + 0.5943396225 = -1.122007114 Simplifying x + 0.5943396225 = -1.122007114 Reorder the terms: 0.5943396225 + x = -1.122007114 Solving 0.5943396225 + x = -1.122007114 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5943396225' to each side of the equation. 0.5943396225 + -0.5943396225 + x = -1.122007114 + -0.5943396225 Combine like terms: 0.5943396225 + -0.5943396225 = 0.0000000000 0.0000000000 + x = -1.122007114 + -0.5943396225 x = -1.122007114 + -0.5943396225 Combine like terms: -1.122007114 + -0.5943396225 = -1.7163467365 x = -1.7163467365 Simplifying x = -1.7163467365

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.5276674915, -1.7163467365}

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