11x^2+5x-3=0

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Solution for 11x^2+5x-3=0 equation:


Simplifying
11x2 + 5x + -3 = 0

Reorder the terms:
-3 + 5x + 11x2 = 0

Solving
-3 + 5x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
-0.2727272727 + 0.4545454545x + x2 = 0

Move the constant term to the right:

Add '0.2727272727' to each side of the equation.
-0.2727272727 + 0.4545454545x + 0.2727272727 + x2 = 0 + 0.2727272727

Reorder the terms:
-0.2727272727 + 0.2727272727 + 0.4545454545x + x2 = 0 + 0.2727272727

Combine like terms: -0.2727272727 + 0.2727272727 = 0.0000000000
0.0000000000 + 0.4545454545x + x2 = 0 + 0.2727272727
0.4545454545x + x2 = 0 + 0.2727272727

Combine like terms: 0 + 0.2727272727 = 0.2727272727
0.4545454545x + x2 = 0.2727272727

The x term is 0.4545454545x.  Take half its coefficient (0.2272727273).
Square it (0.05165289257) and add it to both sides.

Add '0.05165289257' to each side of the equation.
0.4545454545x + 0.05165289257 + x2 = 0.2727272727 + 0.05165289257

Reorder the terms:
0.05165289257 + 0.4545454545x + x2 = 0.2727272727 + 0.05165289257

Combine like terms: 0.2727272727 + 0.05165289257 = 0.32438016527
0.05165289257 + 0.4545454545x + x2 = 0.32438016527

Factor a perfect square on the left side:
(x + 0.2272727273)(x + 0.2272727273) = 0.32438016527

Calculate the square root of the right side: 0.569543822

Break this problem into two subproblems by setting 
(x + 0.2272727273) equal to 0.569543822 and -0.569543822.

Subproblem 1

x + 0.2272727273 = 0.569543822 Simplifying x + 0.2272727273 = 0.569543822 Reorder the terms: 0.2272727273 + x = 0.569543822 Solving 0.2272727273 + x = 0.569543822 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2272727273' to each side of the equation. 0.2272727273 + -0.2272727273 + x = 0.569543822 + -0.2272727273 Combine like terms: 0.2272727273 + -0.2272727273 = 0.0000000000 0.0000000000 + x = 0.569543822 + -0.2272727273 x = 0.569543822 + -0.2272727273 Combine like terms: 0.569543822 + -0.2272727273 = 0.3422710947 x = 0.3422710947 Simplifying x = 0.3422710947

Subproblem 2

x + 0.2272727273 = -0.569543822 Simplifying x + 0.2272727273 = -0.569543822 Reorder the terms: 0.2272727273 + x = -0.569543822 Solving 0.2272727273 + x = -0.569543822 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2272727273' to each side of the equation. 0.2272727273 + -0.2272727273 + x = -0.569543822 + -0.2272727273 Combine like terms: 0.2272727273 + -0.2272727273 = 0.0000000000 0.0000000000 + x = -0.569543822 + -0.2272727273 x = -0.569543822 + -0.2272727273 Combine like terms: -0.569543822 + -0.2272727273 = -0.7968165493 x = -0.7968165493 Simplifying x = -0.7968165493

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.3422710947, -0.7968165493}

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