4.11x^2-2.33x-1.98=0

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Solution for 4.11x^2-2.33x-1.98=0 equation:


Simplifying
4.11x2 + -2.33x + -1.98 = 0

Reorder the terms:
-1.98 + -2.33x + 4.11x2 = 0

Solving
-1.98 + -2.33x + 4.11x2 = 0

Solving for variable 'x'.

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

Divide each side by '4.11'.
-0.4817518248 + -0.5669099757x + x2 = 0

Move the constant term to the right:

Add '0.4817518248' to each side of the equation.
-0.4817518248 + -0.5669099757x + 0.4817518248 + x2 = 0 + 0.4817518248

Reorder the terms:
-0.4817518248 + 0.4817518248 + -0.5669099757x + x2 = 0 + 0.4817518248

Combine like terms: -0.4817518248 + 0.4817518248 = 0.0000000000
0.0000000000 + -0.5669099757x + x2 = 0 + 0.4817518248
-0.5669099757x + x2 = 0 + 0.4817518248

Combine like terms: 0 + 0.4817518248 = 0.4817518248
-0.5669099757x + x2 = 0.4817518248

The x term is -0.5669099757x.  Take half its coefficient (-0.2834549879).
Square it (0.08034673017) and add it to both sides.

Add '0.08034673017' to each side of the equation.
-0.5669099757x + 0.08034673017 + x2 = 0.4817518248 + 0.08034673017

Reorder the terms:
0.08034673017 + -0.5669099757x + x2 = 0.4817518248 + 0.08034673017

Combine like terms: 0.4817518248 + 0.08034673017 = 0.56209855497
0.08034673017 + -0.5669099757x + x2 = 0.56209855497

Factor a perfect square on the left side:
(x + -0.2834549879)(x + -0.2834549879) = 0.56209855497

Calculate the square root of the right side: 0.749732322

Break this problem into two subproblems by setting 
(x + -0.2834549879) equal to 0.749732322 and -0.749732322.

Subproblem 1

x + -0.2834549879 = 0.749732322 Simplifying x + -0.2834549879 = 0.749732322 Reorder the terms: -0.2834549879 + x = 0.749732322 Solving -0.2834549879 + x = 0.749732322 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2834549879' to each side of the equation. -0.2834549879 + 0.2834549879 + x = 0.749732322 + 0.2834549879 Combine like terms: -0.2834549879 + 0.2834549879 = 0.0000000000 0.0000000000 + x = 0.749732322 + 0.2834549879 x = 0.749732322 + 0.2834549879 Combine like terms: 0.749732322 + 0.2834549879 = 1.0331873099 x = 1.0331873099 Simplifying x = 1.0331873099

Subproblem 2

x + -0.2834549879 = -0.749732322 Simplifying x + -0.2834549879 = -0.749732322 Reorder the terms: -0.2834549879 + x = -0.749732322 Solving -0.2834549879 + x = -0.749732322 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2834549879' to each side of the equation. -0.2834549879 + 0.2834549879 + x = -0.749732322 + 0.2834549879 Combine like terms: -0.2834549879 + 0.2834549879 = 0.0000000000 0.0000000000 + x = -0.749732322 + 0.2834549879 x = -0.749732322 + 0.2834549879 Combine like terms: -0.749732322 + 0.2834549879 = -0.4662773341 x = -0.4662773341 Simplifying x = -0.4662773341

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.0331873099, -0.4662773341}

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