x^2+63x=36

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Solution for x^2+63x=36 equation:


Simplifying
x2 + 63x = 36

Reorder the terms:
63x + x2 = 36

Solving
63x + x2 = 36

Solving for variable 'x'.

Reorder the terms:
-36 + 63x + x2 = 36 + -36

Combine like terms: 36 + -36 = 0
-36 + 63x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '36' to each side of the equation.
-36 + 63x + 36 + x2 = 0 + 36

Reorder the terms:
-36 + 36 + 63x + x2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 63x + x2 = 0 + 36
63x + x2 = 0 + 36

Combine like terms: 0 + 36 = 36
63x + x2 = 36

The x term is 63x.  Take half its coefficient (31.5).
Square it (992.25) and add it to both sides.

Add '992.25' to each side of the equation.
63x + 992.25 + x2 = 36 + 992.25

Reorder the terms:
992.25 + 63x + x2 = 36 + 992.25

Combine like terms: 36 + 992.25 = 1028.25
992.25 + 63x + x2 = 1028.25

Factor a perfect square on the left side:
(x + 31.5)(x + 31.5) = 1028.25

Calculate the square root of the right side: 32.06633749

Break this problem into two subproblems by setting 
(x + 31.5) equal to 32.06633749 and -32.06633749.

Subproblem 1

x + 31.5 = 32.06633749 Simplifying x + 31.5 = 32.06633749 Reorder the terms: 31.5 + x = 32.06633749 Solving 31.5 + x = 32.06633749 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-31.5' to each side of the equation. 31.5 + -31.5 + x = 32.06633749 + -31.5 Combine like terms: 31.5 + -31.5 = 0.0 0.0 + x = 32.06633749 + -31.5 x = 32.06633749 + -31.5 Combine like terms: 32.06633749 + -31.5 = 0.56633749 x = 0.56633749 Simplifying x = 0.56633749

Subproblem 2

x + 31.5 = -32.06633749 Simplifying x + 31.5 = -32.06633749 Reorder the terms: 31.5 + x = -32.06633749 Solving 31.5 + x = -32.06633749 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-31.5' to each side of the equation. 31.5 + -31.5 + x = -32.06633749 + -31.5 Combine like terms: 31.5 + -31.5 = 0.0 0.0 + x = -32.06633749 + -31.5 x = -32.06633749 + -31.5 Combine like terms: -32.06633749 + -31.5 = -63.56633749 x = -63.56633749 Simplifying x = -63.56633749

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.56633749, -63.56633749}

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