x^2-30x+10=0

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Solution for x^2-30x+10=0 equation:


Simplifying
x2 + -30x + 10 = 0

Reorder the terms:
10 + -30x + x2 = 0

Solving
10 + -30x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-10' to each side of the equation.
10 + -30x + -10 + x2 = 0 + -10

Reorder the terms:
10 + -10 + -30x + x2 = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -30x + x2 = 0 + -10
-30x + x2 = 0 + -10

Combine like terms: 0 + -10 = -10
-30x + x2 = -10

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 = -10 + 225

Reorder the terms:
225 + -30x + x2 = -10 + 225

Combine like terms: -10 + 225 = 215
225 + -30x + x2 = 215

Factor a perfect square on the left side:
(x + -15)(x + -15) = 215

Calculate the square root of the right side: 14.662878299

Break this problem into two subproblems by setting 
(x + -15) equal to 14.662878299 and -14.662878299.

Subproblem 1

x + -15 = 14.662878299 Simplifying x + -15 = 14.662878299 Reorder the terms: -15 + x = 14.662878299 Solving -15 + x = 14.662878299 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 = 14.662878299 + 15 Combine like terms: -15 + 15 = 0 0 + x = 14.662878299 + 15 x = 14.662878299 + 15 Combine like terms: 14.662878299 + 15 = 29.662878299 x = 29.662878299 Simplifying x = 29.662878299

Subproblem 2

x + -15 = -14.662878299 Simplifying x + -15 = -14.662878299 Reorder the terms: -15 + x = -14.662878299 Solving -15 + x = -14.662878299 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 = -14.662878299 + 15 Combine like terms: -15 + 15 = 0 0 + x = -14.662878299 + 15 x = -14.662878299 + 15 Combine like terms: -14.662878299 + 15 = 0.337121701 x = 0.337121701 Simplifying x = 0.337121701

Solution

The solution to the problem is based on the solutions from the subproblems. x = {29.662878299, 0.337121701}

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