(11+2x)x=63*63

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Solution for (11+2x)x=63*63 equation:


Simplifying
(11 + 2x) * x = 63 * 63

Reorder the terms for easier multiplication:
x(11 + 2x) = 63 * 63
(11 * x + 2x * x) = 63 * 63
(11x + 2x2) = 63 * 63

Multiply 63 * 63
11x + 2x2 = 3969

Solving
11x + 2x2 = 3969

Solving for variable 'x'.

Reorder the terms:
-3969 + 11x + 2x2 = 3969 + -3969

Combine like terms: 3969 + -3969 = 0
-3969 + 11x + 2x2 = 0

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

Divide each side by '2'.
-1984.5 + 5.5x + x2 = 0

Move the constant term to the right:

Add '1984.5' to each side of the equation.
-1984.5 + 5.5x + 1984.5 + x2 = 0 + 1984.5

Reorder the terms:
-1984.5 + 1984.5 + 5.5x + x2 = 0 + 1984.5

Combine like terms: -1984.5 + 1984.5 = 0.0
0.0 + 5.5x + x2 = 0 + 1984.5
5.5x + x2 = 0 + 1984.5

Combine like terms: 0 + 1984.5 = 1984.5
5.5x + x2 = 1984.5

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 = 1984.5 + 7.5625

Reorder the terms:
7.5625 + 5.5x + x2 = 1984.5 + 7.5625

Combine like terms: 1984.5 + 7.5625 = 1992.0625
7.5625 + 5.5x + x2 = 1992.0625

Factor a perfect square on the left side:
(x + 2.75)(x + 2.75) = 1992.0625

Calculate the square root of the right side: 44.632527376

Break this problem into two subproblems by setting 
(x + 2.75) equal to 44.632527376 and -44.632527376.

Subproblem 1

x + 2.75 = 44.632527376 Simplifying x + 2.75 = 44.632527376 Reorder the terms: 2.75 + x = 44.632527376 Solving 2.75 + x = 44.632527376 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 = 44.632527376 + -2.75 Combine like terms: 2.75 + -2.75 = 0.00 0.00 + x = 44.632527376 + -2.75 x = 44.632527376 + -2.75 Combine like terms: 44.632527376 + -2.75 = 41.882527376 x = 41.882527376 Simplifying x = 41.882527376

Subproblem 2

x + 2.75 = -44.632527376 Simplifying x + 2.75 = -44.632527376 Reorder the terms: 2.75 + x = -44.632527376 Solving 2.75 + x = -44.632527376 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 = -44.632527376 + -2.75 Combine like terms: 2.75 + -2.75 = 0.00 0.00 + x = -44.632527376 + -2.75 x = -44.632527376 + -2.75 Combine like terms: -44.632527376 + -2.75 = -47.382527376 x = -47.382527376 Simplifying x = -47.382527376

Solution

The solution to the problem is based on the solutions from the subproblems. x = {41.882527376, -47.382527376}

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