2x^2-3x+101=360

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Solution for 2x^2-3x+101=360 equation:


Simplifying
2x2 + -3x + 101 = 360

Reorder the terms:
101 + -3x + 2x2 = 360

Solving
101 + -3x + 2x2 = 360

Solving for variable 'x'.

Reorder the terms:
101 + -360 + -3x + 2x2 = 360 + -360

Combine like terms: 101 + -360 = -259
-259 + -3x + 2x2 = 360 + -360

Combine like terms: 360 + -360 = 0
-259 + -3x + 2x2 = 0

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

Divide each side by '2'.
-129.5 + -1.5x + x2 = 0

Move the constant term to the right:

Add '129.5' to each side of the equation.
-129.5 + -1.5x + 129.5 + x2 = 0 + 129.5

Reorder the terms:
-129.5 + 129.5 + -1.5x + x2 = 0 + 129.5

Combine like terms: -129.5 + 129.5 = 0.0
0.0 + -1.5x + x2 = 0 + 129.5
-1.5x + x2 = 0 + 129.5

Combine like terms: 0 + 129.5 = 129.5
-1.5x + x2 = 129.5

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 = 129.5 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 129.5 + 0.5625

Combine like terms: 129.5 + 0.5625 = 130.0625
0.5625 + -1.5x + x2 = 130.0625

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 130.0625

Calculate the square root of the right side: 11.404494728

Break this problem into two subproblems by setting 
(x + -0.75) equal to 11.404494728 and -11.404494728.

Subproblem 1

x + -0.75 = 11.404494728 Simplifying x + -0.75 = 11.404494728 Reorder the terms: -0.75 + x = 11.404494728 Solving -0.75 + x = 11.404494728 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 = 11.404494728 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 11.404494728 + 0.75 x = 11.404494728 + 0.75 Combine like terms: 11.404494728 + 0.75 = 12.154494728 x = 12.154494728 Simplifying x = 12.154494728

Subproblem 2

x + -0.75 = -11.404494728 Simplifying x + -0.75 = -11.404494728 Reorder the terms: -0.75 + x = -11.404494728 Solving -0.75 + x = -11.404494728 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 = -11.404494728 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -11.404494728 + 0.75 x = -11.404494728 + 0.75 Combine like terms: -11.404494728 + 0.75 = -10.654494728 x = -10.654494728 Simplifying x = -10.654494728

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.154494728, -10.654494728}

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