14x-x^2=-61

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Solution for 14x-x^2=-61 equation:


Simplifying
14x + -1x2 = -61

Solving
14x + -1x2 = -61

Solving for variable 'x'.

Reorder the terms:
61 + 14x + -1x2 = -61 + 61

Combine like terms: -61 + 61 = 0
61 + 14x + -1x2 = 0

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

Divide each side by '-1'.
-61 + -14x + x2 = 0

Move the constant term to the right:

Add '61' to each side of the equation.
-61 + -14x + 61 + x2 = 0 + 61

Reorder the terms:
-61 + 61 + -14x + x2 = 0 + 61

Combine like terms: -61 + 61 = 0
0 + -14x + x2 = 0 + 61
-14x + x2 = 0 + 61

Combine like terms: 0 + 61 = 61
-14x + x2 = 61

The x term is -14x.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14x + 49 + x2 = 61 + 49

Reorder the terms:
49 + -14x + x2 = 61 + 49

Combine like terms: 61 + 49 = 110
49 + -14x + x2 = 110

Factor a perfect square on the left side:
(x + -7)(x + -7) = 110

Calculate the square root of the right side: 10.488088482

Break this problem into two subproblems by setting 
(x + -7) equal to 10.488088482 and -10.488088482.

Subproblem 1

x + -7 = 10.488088482 Simplifying x + -7 = 10.488088482 Reorder the terms: -7 + x = 10.488088482 Solving -7 + x = 10.488088482 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = 10.488088482 + 7 Combine like terms: -7 + 7 = 0 0 + x = 10.488088482 + 7 x = 10.488088482 + 7 Combine like terms: 10.488088482 + 7 = 17.488088482 x = 17.488088482 Simplifying x = 17.488088482

Subproblem 2

x + -7 = -10.488088482 Simplifying x + -7 = -10.488088482 Reorder the terms: -7 + x = -10.488088482 Solving -7 + x = -10.488088482 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = -10.488088482 + 7 Combine like terms: -7 + 7 = 0 0 + x = -10.488088482 + 7 x = -10.488088482 + 7 Combine like terms: -10.488088482 + 7 = -3.488088482 x = -3.488088482 Simplifying x = -3.488088482

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.488088482, -3.488088482}

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