-5x^2+17x-10=0

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Solution for -5x^2+17x-10=0 equation:


Simplifying
-5x2 + 17x + -10 = 0

Reorder the terms:
-10 + 17x + -5x2 = 0

Solving
-10 + 17x + -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'.
2 + -3.4x + x2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -3.4x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -3.4x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -3.4x + x2 = 0 + -2
-3.4x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-3.4x + x2 = -2

The x term is -3.4x.  Take half its coefficient (-1.7).
Square it (2.89) and add it to both sides.

Add '2.89' to each side of the equation.
-3.4x + 2.89 + x2 = -2 + 2.89

Reorder the terms:
2.89 + -3.4x + x2 = -2 + 2.89

Combine like terms: -2 + 2.89 = 0.89
2.89 + -3.4x + x2 = 0.89

Factor a perfect square on the left side:
(x + -1.7)(x + -1.7) = 0.89

Calculate the square root of the right side: 0.943398113

Break this problem into two subproblems by setting 
(x + -1.7) equal to 0.943398113 and -0.943398113.

Subproblem 1

x + -1.7 = 0.943398113 Simplifying x + -1.7 = 0.943398113 Reorder the terms: -1.7 + x = 0.943398113 Solving -1.7 + x = 0.943398113 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.7' to each side of the equation. -1.7 + 1.7 + x = 0.943398113 + 1.7 Combine like terms: -1.7 + 1.7 = 0.0 0.0 + x = 0.943398113 + 1.7 x = 0.943398113 + 1.7 Combine like terms: 0.943398113 + 1.7 = 2.643398113 x = 2.643398113 Simplifying x = 2.643398113

Subproblem 2

x + -1.7 = -0.943398113 Simplifying x + -1.7 = -0.943398113 Reorder the terms: -1.7 + x = -0.943398113 Solving -1.7 + x = -0.943398113 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.7' to each side of the equation. -1.7 + 1.7 + x = -0.943398113 + 1.7 Combine like terms: -1.7 + 1.7 = 0.0 0.0 + x = -0.943398113 + 1.7 x = -0.943398113 + 1.7 Combine like terms: -0.943398113 + 1.7 = 0.756601887 x = 0.756601887 Simplifying x = 0.756601887

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.643398113, 0.756601887}

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