x^2-x-2=x^2-66x+x^2+64

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Solution for x^2-x-2=x^2-66x+x^2+64 equation:


Simplifying
x2 + -1x + -2 = x2 + -66x + x2 + 64

Reorder the terms:
-2 + -1x + x2 = x2 + -66x + x2 + 64

Reorder the terms:
-2 + -1x + x2 = 64 + -66x + x2 + x2

Combine like terms: x2 + x2 = 2x2
-2 + -1x + x2 = 64 + -66x + 2x2

Solving
-2 + -1x + x2 = 64 + -66x + 2x2

Solving for variable 'x'.

Reorder the terms:
-2 + -64 + -1x + 66x + x2 + -2x2 = 64 + -66x + 2x2 + -64 + 66x + -2x2

Combine like terms: -2 + -64 = -66
-66 + -1x + 66x + x2 + -2x2 = 64 + -66x + 2x2 + -64 + 66x + -2x2

Combine like terms: -1x + 66x = 65x
-66 + 65x + x2 + -2x2 = 64 + -66x + 2x2 + -64 + 66x + -2x2

Combine like terms: x2 + -2x2 = -1x2
-66 + 65x + -1x2 = 64 + -66x + 2x2 + -64 + 66x + -2x2

Reorder the terms:
-66 + 65x + -1x2 = 64 + -64 + -66x + 66x + 2x2 + -2x2

Combine like terms: 64 + -64 = 0
-66 + 65x + -1x2 = 0 + -66x + 66x + 2x2 + -2x2
-66 + 65x + -1x2 = -66x + 66x + 2x2 + -2x2

Combine like terms: -66x + 66x = 0
-66 + 65x + -1x2 = 0 + 2x2 + -2x2
-66 + 65x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-66 + 65x + -1x2 = 0

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

Divide each side by '-1'.
66 + -65x + x2 = 0

Move the constant term to the right:

Add '-66' to each side of the equation.
66 + -65x + -66 + x2 = 0 + -66

Reorder the terms:
66 + -66 + -65x + x2 = 0 + -66

Combine like terms: 66 + -66 = 0
0 + -65x + x2 = 0 + -66
-65x + x2 = 0 + -66

Combine like terms: 0 + -66 = -66
-65x + x2 = -66

The x term is -65x.  Take half its coefficient (-32.5).
Square it (1056.25) and add it to both sides.

Add '1056.25' to each side of the equation.
-65x + 1056.25 + x2 = -66 + 1056.25

Reorder the terms:
1056.25 + -65x + x2 = -66 + 1056.25

Combine like terms: -66 + 1056.25 = 990.25
1056.25 + -65x + x2 = 990.25

Factor a perfect square on the left side:
(x + -32.5)(x + -32.5) = 990.25

Calculate the square root of the right side: 31.468237955

Break this problem into two subproblems by setting 
(x + -32.5) equal to 31.468237955 and -31.468237955.

Subproblem 1

x + -32.5 = 31.468237955 Simplifying x + -32.5 = 31.468237955 Reorder the terms: -32.5 + x = 31.468237955 Solving -32.5 + x = 31.468237955 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '32.5' to each side of the equation. -32.5 + 32.5 + x = 31.468237955 + 32.5 Combine like terms: -32.5 + 32.5 = 0.0 0.0 + x = 31.468237955 + 32.5 x = 31.468237955 + 32.5 Combine like terms: 31.468237955 + 32.5 = 63.968237955 x = 63.968237955 Simplifying x = 63.968237955

Subproblem 2

x + -32.5 = -31.468237955 Simplifying x + -32.5 = -31.468237955 Reorder the terms: -32.5 + x = -31.468237955 Solving -32.5 + x = -31.468237955 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '32.5' to each side of the equation. -32.5 + 32.5 + x = -31.468237955 + 32.5 Combine like terms: -32.5 + 32.5 = 0.0 0.0 + x = -31.468237955 + 32.5 x = -31.468237955 + 32.5 Combine like terms: -31.468237955 + 32.5 = 1.031762045 x = 1.031762045 Simplifying x = 1.031762045

Solution

The solution to the problem is based on the solutions from the subproblems. x = {63.968237955, 1.031762045}

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