1.71-90*9.41x-1.29*900*x^2=0

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Solution for 1.71-90*9.41x-1.29*900*x^2=0 equation:


Simplifying
1.71 + -90 * 9.41x + -1.29 * 900x2 = 0

Multiply -90 * 9.41
1.71 + -846.9x + -1.29 * 900x2 = 0

Multiply -1.29 * 900
1.71 + -846.9x + -1161x2 = 0

Solving
1.71 + -846.9x + -1161x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1161 the coefficient of the squared term: 

Divide each side by '-1161'.
-0.001472868217 + 0.7294573643x + x2 = 0

Move the constant term to the right:

Add '0.001472868217' to each side of the equation.
-0.001472868217 + 0.7294573643x + 0.001472868217 + x2 = 0 + 0.001472868217

Reorder the terms:
-0.001472868217 + 0.001472868217 + 0.7294573643x + x2 = 0 + 0.001472868217

Combine like terms: -0.001472868217 + 0.001472868217 = 0.000000000000
0.000000000000 + 0.7294573643x + x2 = 0 + 0.001472868217
0.7294573643x + x2 = 0 + 0.001472868217

Combine like terms: 0 + 0.001472868217 = 0.001472868217
0.7294573643x + x2 = 0.001472868217

The x term is 0.7294573643x.  Take half its coefficient (0.3647286822).
Square it (0.1330270116) and add it to both sides.

Add '0.1330270116' to each side of the equation.
0.7294573643x + 0.1330270116 + x2 = 0.001472868217 + 0.1330270116

Reorder the terms:
0.1330270116 + 0.7294573643x + x2 = 0.001472868217 + 0.1330270116

Combine like terms: 0.001472868217 + 0.1330270116 = 0.134499879817
0.1330270116 + 0.7294573643x + x2 = 0.134499879817

Factor a perfect square on the left side:
(x + 0.3647286822)(x + 0.3647286822) = 0.134499879817

Calculate the square root of the right side: 0.366742253

Break this problem into two subproblems by setting 
(x + 0.3647286822) equal to 0.366742253 and -0.366742253.

Subproblem 1

x + 0.3647286822 = 0.366742253 Simplifying x + 0.3647286822 = 0.366742253 Reorder the terms: 0.3647286822 + x = 0.366742253 Solving 0.3647286822 + x = 0.366742253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3647286822' to each side of the equation. 0.3647286822 + -0.3647286822 + x = 0.366742253 + -0.3647286822 Combine like terms: 0.3647286822 + -0.3647286822 = 0.0000000000 0.0000000000 + x = 0.366742253 + -0.3647286822 x = 0.366742253 + -0.3647286822 Combine like terms: 0.366742253 + -0.3647286822 = 0.0020135708 x = 0.0020135708 Simplifying x = 0.0020135708

Subproblem 2

x + 0.3647286822 = -0.366742253 Simplifying x + 0.3647286822 = -0.366742253 Reorder the terms: 0.3647286822 + x = -0.366742253 Solving 0.3647286822 + x = -0.366742253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3647286822' to each side of the equation. 0.3647286822 + -0.3647286822 + x = -0.366742253 + -0.3647286822 Combine like terms: 0.3647286822 + -0.3647286822 = 0.0000000000 0.0000000000 + x = -0.366742253 + -0.3647286822 x = -0.366742253 + -0.3647286822 Combine like terms: -0.366742253 + -0.3647286822 = -0.7314709352 x = -0.7314709352 Simplifying x = -0.7314709352

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.0020135708, -0.7314709352}

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