x^2-30x=2

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Solution for x^2-30x=2 equation:


Simplifying
x2 + -30x = 2

Reorder the terms:
-30x + x2 = 2

Solving
-30x + x2 = 2

Solving for variable 'x'.

Reorder the terms:
-2 + -30x + x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + -30x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -30x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -30x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -30x + x2 = 0 + 2
-30x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-30x + x2 = 2

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 = 2 + 225

Reorder the terms:
225 + -30x + x2 = 2 + 225

Combine like terms: 2 + 225 = 227
225 + -30x + x2 = 227

Factor a perfect square on the left side:
(x + -15)(x + -15) = 227

Calculate the square root of the right side: 15.066519173

Break this problem into two subproblems by setting 
(x + -15) equal to 15.066519173 and -15.066519173.

Subproblem 1

x + -15 = 15.066519173 Simplifying x + -15 = 15.066519173 Reorder the terms: -15 + x = 15.066519173 Solving -15 + x = 15.066519173 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 = 15.066519173 + 15 Combine like terms: -15 + 15 = 0 0 + x = 15.066519173 + 15 x = 15.066519173 + 15 Combine like terms: 15.066519173 + 15 = 30.066519173 x = 30.066519173 Simplifying x = 30.066519173

Subproblem 2

x + -15 = -15.066519173 Simplifying x + -15 = -15.066519173 Reorder the terms: -15 + x = -15.066519173 Solving -15 + x = -15.066519173 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 = -15.066519173 + 15 Combine like terms: -15 + 15 = 0 0 + x = -15.066519173 + 15 x = -15.066519173 + 15 Combine like terms: -15.066519173 + 15 = -0.066519173 x = -0.066519173 Simplifying x = -0.066519173

Solution

The solution to the problem is based on the solutions from the subproblems. x = {30.066519173, -0.066519173}

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