-x^2+5x=1.709

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Solution for -x^2+5x=1.709 equation:


Simplifying
-1x2 + 5x = 1.709

Reorder the terms:
5x + -1x2 = 1.709

Solving
5x + -1x2 = 1.709

Solving for variable 'x'.

Reorder the terms:
-1.709 + 5x + -1x2 = 1.709 + -1.709

Combine like terms: 1.709 + -1.709 = 0.000
-1.709 + 5x + -1x2 = 0.000

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
1.709 + -5x + x2 = 0.000

Move the constant term to the right:

Add '-1.709' to each side of the equation.
1.709 + -5x + -1.709 + x2 = 0.000 + -1.709

Reorder the terms:
1.709 + -1.709 + -5x + x2 = 0.000 + -1.709

Combine like terms: 1.709 + -1.709 = 0.000
0.000 + -5x + x2 = 0.000 + -1.709
-5x + x2 = 0.000 + -1.709

Combine like terms: 0.000 + -1.709 = -1.709
-5x + x2 = -1.709

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = -1.709 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -1.709 + 6.25

Combine like terms: -1.709 + 6.25 = 4.541
6.25 + -5x + x2 = 4.541

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 4.541

Calculate the square root of the right side: 2.130962224

Break this problem into two subproblems by setting 
(x + -2.5) equal to 2.130962224 and -2.130962224.

Subproblem 1

x + -2.5 = 2.130962224 Simplifying x + -2.5 = 2.130962224 Reorder the terms: -2.5 + x = 2.130962224 Solving -2.5 + x = 2.130962224 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 2.130962224 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 2.130962224 + 2.5 x = 2.130962224 + 2.5 Combine like terms: 2.130962224 + 2.5 = 4.630962224 x = 4.630962224 Simplifying x = 4.630962224

Subproblem 2

x + -2.5 = -2.130962224 Simplifying x + -2.5 = -2.130962224 Reorder the terms: -2.5 + x = -2.130962224 Solving -2.5 + x = -2.130962224 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -2.130962224 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -2.130962224 + 2.5 x = -2.130962224 + 2.5 Combine like terms: -2.130962224 + 2.5 = 0.369037776 x = 0.369037776 Simplifying x = 0.369037776

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.630962224, 0.369037776}

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