4900=(x-3)(x)

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Solution for 4900=(x-3)(x) equation:


Simplifying
4900 = (x + -3)(x)

Reorder the terms:
4900 = (-3 + x)(x)

Reorder the terms for easier multiplication:
4900 = x(-3 + x)
4900 = (-3 * x + x * x)
4900 = (-3x + x2)

Solving
4900 = -3x + x2

Solving for variable 'x'.

Reorder the terms:
4900 + 3x + -1x2 = -3x + 3x + x2 + -1x2

Combine like terms: -3x + 3x = 0
4900 + 3x + -1x2 = 0 + x2 + -1x2
4900 + 3x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
4900 + 3x + -1x2 = 0

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

Divide each side by '-1'.
-4900 + -3x + x2 = 0

Move the constant term to the right:

Add '4900' to each side of the equation.
-4900 + -3x + 4900 + x2 = 0 + 4900

Reorder the terms:
-4900 + 4900 + -3x + x2 = 0 + 4900

Combine like terms: -4900 + 4900 = 0
0 + -3x + x2 = 0 + 4900
-3x + x2 = 0 + 4900

Combine like terms: 0 + 4900 = 4900
-3x + x2 = 4900

The x term is -3x.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3x + 2.25 + x2 = 4900 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 4900 + 2.25

Combine like terms: 4900 + 2.25 = 4902.25
2.25 + -3x + x2 = 4902.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 4902.25

Calculate the square root of the right side: 70.016069584

Break this problem into two subproblems by setting 
(x + -1.5) equal to 70.016069584 and -70.016069584.

Subproblem 1

x + -1.5 = 70.016069584 Simplifying x + -1.5 = 70.016069584 Reorder the terms: -1.5 + x = 70.016069584 Solving -1.5 + x = 70.016069584 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 70.016069584 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 70.016069584 + 1.5 x = 70.016069584 + 1.5 Combine like terms: 70.016069584 + 1.5 = 71.516069584 x = 71.516069584 Simplifying x = 71.516069584

Subproblem 2

x + -1.5 = -70.016069584 Simplifying x + -1.5 = -70.016069584 Reorder the terms: -1.5 + x = -70.016069584 Solving -1.5 + x = -70.016069584 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -70.016069584 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -70.016069584 + 1.5 x = -70.016069584 + 1.5 Combine like terms: -70.016069584 + 1.5 = -68.516069584 x = -68.516069584 Simplifying x = -68.516069584

Solution

The solution to the problem is based on the solutions from the subproblems. x = {71.516069584, -68.516069584}

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