x^2-14x-64=

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Solution for x^2-14x-64= equation:


Simplifying
x2 + -14x + -64 = 0

Reorder the terms:
-64 + -14x + x2 = 0

Solving
-64 + -14x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '64' to each side of the equation.
-64 + -14x + 64 + x2 = 0 + 64

Reorder the terms:
-64 + 64 + -14x + x2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + -14x + x2 = 0 + 64
-14x + x2 = 0 + 64

Combine like terms: 0 + 64 = 64
-14x + x2 = 64

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 = 64 + 49

Reorder the terms:
49 + -14x + x2 = 64 + 49

Combine like terms: 64 + 49 = 113
49 + -14x + x2 = 113

Factor a perfect square on the left side:
(x + -7)(x + -7) = 113

Calculate the square root of the right side: 10.630145813

Break this problem into two subproblems by setting 
(x + -7) equal to 10.630145813 and -10.630145813.

Subproblem 1

x + -7 = 10.630145813 Simplifying x + -7 = 10.630145813 Reorder the terms: -7 + x = 10.630145813 Solving -7 + x = 10.630145813 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 = 10.630145813 + 7 Combine like terms: -7 + 7 = 0 0 + x = 10.630145813 + 7 x = 10.630145813 + 7 Combine like terms: 10.630145813 + 7 = 17.630145813 x = 17.630145813 Simplifying x = 17.630145813

Subproblem 2

x + -7 = -10.630145813 Simplifying x + -7 = -10.630145813 Reorder the terms: -7 + x = -10.630145813 Solving -7 + x = -10.630145813 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 = -10.630145813 + 7 Combine like terms: -7 + 7 = 0 0 + x = -10.630145813 + 7 x = -10.630145813 + 7 Combine like terms: -10.630145813 + 7 = -3.630145813 x = -3.630145813 Simplifying x = -3.630145813

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.630145813, -3.630145813}

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