x^2+30x-2700=0

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Solution for x^2+30x-2700=0 equation:


Simplifying
x2 + 30x + -2700 = 0

Reorder the terms:
-2700 + 30x + x2 = 0

Solving
-2700 + 30x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '2700' to each side of the equation.
-2700 + 30x + 2700 + x2 = 0 + 2700

Reorder the terms:
-2700 + 2700 + 30x + x2 = 0 + 2700

Combine like terms: -2700 + 2700 = 0
0 + 30x + x2 = 0 + 2700
30x + x2 = 0 + 2700

Combine like terms: 0 + 2700 = 2700
30x + x2 = 2700

The x term is 30x.  Take half its coefficient (15).
Square it (225) and add it to both sides.

Add '225' to each side of the equation.
30x + 225 + x2 = 2700 + 225

Reorder the terms:
225 + 30x + x2 = 2700 + 225

Combine like terms: 2700 + 225 = 2925
225 + 30x + x2 = 2925

Factor a perfect square on the left side:
(x + 15)(x + 15) = 2925

Calculate the square root of the right side: 54.083269132

Break this problem into two subproblems by setting 
(x + 15) equal to 54.083269132 and -54.083269132.

Subproblem 1

x + 15 = 54.083269132 Simplifying x + 15 = 54.083269132 Reorder the terms: 15 + x = 54.083269132 Solving 15 + x = 54.083269132 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = 54.083269132 + -15 Combine like terms: 15 + -15 = 0 0 + x = 54.083269132 + -15 x = 54.083269132 + -15 Combine like terms: 54.083269132 + -15 = 39.083269132 x = 39.083269132 Simplifying x = 39.083269132

Subproblem 2

x + 15 = -54.083269132 Simplifying x + 15 = -54.083269132 Reorder the terms: 15 + x = -54.083269132 Solving 15 + x = -54.083269132 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = -54.083269132 + -15 Combine like terms: 15 + -15 = 0 0 + x = -54.083269132 + -15 x = -54.083269132 + -15 Combine like terms: -54.083269132 + -15 = -69.083269132 x = -69.083269132 Simplifying x = -69.083269132

Solution

The solution to the problem is based on the solutions from the subproblems. x = {39.083269132, -69.083269132}

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