-11x+62=2x^2

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Solution for -11x+62=2x^2 equation:


Simplifying
-11x + 62 = 2x2

Reorder the terms:
62 + -11x = 2x2

Solving
62 + -11x = 2x2

Solving for variable 'x'.

Combine like terms: 2x2 + -2x2 = 0
62 + -11x + -2x2 = 0

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

Divide each side by '-2'.
-31 + 5.5x + x2 = 0

Move the constant term to the right:

Add '31' to each side of the equation.
-31 + 5.5x + 31 + x2 = 0 + 31

Reorder the terms:
-31 + 31 + 5.5x + x2 = 0 + 31

Combine like terms: -31 + 31 = 0
0 + 5.5x + x2 = 0 + 31
5.5x + x2 = 0 + 31

Combine like terms: 0 + 31 = 31
5.5x + x2 = 31

The x term is 5.5x.  Take half its coefficient (2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
5.5x + 7.5625 + x2 = 31 + 7.5625

Reorder the terms:
7.5625 + 5.5x + x2 = 31 + 7.5625

Combine like terms: 31 + 7.5625 = 38.5625
7.5625 + 5.5x + x2 = 38.5625

Factor a perfect square on the left side:
(x + 2.75)(x + 2.75) = 38.5625

Calculate the square root of the right side: 6.209871174

Break this problem into two subproblems by setting 
(x + 2.75) equal to 6.209871174 and -6.209871174.

Subproblem 1

x + 2.75 = 6.209871174 Simplifying x + 2.75 = 6.209871174 Reorder the terms: 2.75 + x = 6.209871174 Solving 2.75 + x = 6.209871174 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.75' to each side of the equation. 2.75 + -2.75 + x = 6.209871174 + -2.75 Combine like terms: 2.75 + -2.75 = 0.00 0.00 + x = 6.209871174 + -2.75 x = 6.209871174 + -2.75 Combine like terms: 6.209871174 + -2.75 = 3.459871174 x = 3.459871174 Simplifying x = 3.459871174

Subproblem 2

x + 2.75 = -6.209871174 Simplifying x + 2.75 = -6.209871174 Reorder the terms: 2.75 + x = -6.209871174 Solving 2.75 + x = -6.209871174 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.75' to each side of the equation. 2.75 + -2.75 + x = -6.209871174 + -2.75 Combine like terms: 2.75 + -2.75 = 0.00 0.00 + x = -6.209871174 + -2.75 x = -6.209871174 + -2.75 Combine like terms: -6.209871174 + -2.75 = -8.959871174 x = -8.959871174 Simplifying x = -8.959871174

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.459871174, -8.959871174}

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