2x^2-3x+17=50

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Solution for 2x^2-3x+17=50 equation:


Simplifying
2x2 + -3x + 17 = 50

Reorder the terms:
17 + -3x + 2x2 = 50

Solving
17 + -3x + 2x2 = 50

Solving for variable 'x'.

Reorder the terms:
17 + -50 + -3x + 2x2 = 50 + -50

Combine like terms: 17 + -50 = -33
-33 + -3x + 2x2 = 50 + -50

Combine like terms: 50 + -50 = 0
-33 + -3x + 2x2 = 0

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

Divide each side by '2'.
-16.5 + -1.5x + x2 = 0

Move the constant term to the right:

Add '16.5' to each side of the equation.
-16.5 + -1.5x + 16.5 + x2 = 0 + 16.5

Reorder the terms:
-16.5 + 16.5 + -1.5x + x2 = 0 + 16.5

Combine like terms: -16.5 + 16.5 = 0.0
0.0 + -1.5x + x2 = 0 + 16.5
-1.5x + x2 = 0 + 16.5

Combine like terms: 0 + 16.5 = 16.5
-1.5x + x2 = 16.5

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = 16.5 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 16.5 + 0.5625

Combine like terms: 16.5 + 0.5625 = 17.0625
0.5625 + -1.5x + x2 = 17.0625

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 17.0625

Calculate the square root of the right side: 4.13067791

Break this problem into two subproblems by setting 
(x + -0.75) equal to 4.13067791 and -4.13067791.

Subproblem 1

x + -0.75 = 4.13067791 Simplifying x + -0.75 = 4.13067791 Reorder the terms: -0.75 + x = 4.13067791 Solving -0.75 + x = 4.13067791 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 4.13067791 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 4.13067791 + 0.75 x = 4.13067791 + 0.75 Combine like terms: 4.13067791 + 0.75 = 4.88067791 x = 4.88067791 Simplifying x = 4.88067791

Subproblem 2

x + -0.75 = -4.13067791 Simplifying x + -0.75 = -4.13067791 Reorder the terms: -0.75 + x = -4.13067791 Solving -0.75 + x = -4.13067791 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -4.13067791 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -4.13067791 + 0.75 x = -4.13067791 + 0.75 Combine like terms: -4.13067791 + 0.75 = -3.38067791 x = -3.38067791 Simplifying x = -3.38067791

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.88067791, -3.38067791}

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