5x^2+23x-35=0

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Solution for 5x^2+23x-35=0 equation:


Simplifying
5x2 + 23x + -35 = 0

Reorder the terms:
-35 + 23x + 5x2 = 0

Solving
-35 + 23x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-7 + 4.6x + x2 = 0

Move the constant term to the right:

Add '7' to each side of the equation.
-7 + 4.6x + 7 + x2 = 0 + 7

Reorder the terms:
-7 + 7 + 4.6x + x2 = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 4.6x + x2 = 0 + 7
4.6x + x2 = 0 + 7

Combine like terms: 0 + 7 = 7
4.6x + x2 = 7

The x term is 4.6x.  Take half its coefficient (2.3).
Square it (5.29) and add it to both sides.

Add '5.29' to each side of the equation.
4.6x + 5.29 + x2 = 7 + 5.29

Reorder the terms:
5.29 + 4.6x + x2 = 7 + 5.29

Combine like terms: 7 + 5.29 = 12.29
5.29 + 4.6x + x2 = 12.29

Factor a perfect square on the left side:
(x + 2.3)(x + 2.3) = 12.29

Calculate the square root of the right side: 3.505709629

Break this problem into two subproblems by setting 
(x + 2.3) equal to 3.505709629 and -3.505709629.

Subproblem 1

x + 2.3 = 3.505709629 Simplifying x + 2.3 = 3.505709629 Reorder the terms: 2.3 + x = 3.505709629 Solving 2.3 + x = 3.505709629 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.3' to each side of the equation. 2.3 + -2.3 + x = 3.505709629 + -2.3 Combine like terms: 2.3 + -2.3 = 0.0 0.0 + x = 3.505709629 + -2.3 x = 3.505709629 + -2.3 Combine like terms: 3.505709629 + -2.3 = 1.205709629 x = 1.205709629 Simplifying x = 1.205709629

Subproblem 2

x + 2.3 = -3.505709629 Simplifying x + 2.3 = -3.505709629 Reorder the terms: 2.3 + x = -3.505709629 Solving 2.3 + x = -3.505709629 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.3' to each side of the equation. 2.3 + -2.3 + x = -3.505709629 + -2.3 Combine like terms: 2.3 + -2.3 = 0.0 0.0 + x = -3.505709629 + -2.3 x = -3.505709629 + -2.3 Combine like terms: -3.505709629 + -2.3 = -5.805709629 x = -5.805709629 Simplifying x = -5.805709629

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.205709629, -5.805709629}

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