x^2-2x=-30

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


Simplifying
x2 + -2x = -30

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

Solving
-2x + x2 = -30

Solving for variable 'x'.

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

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

Begin completing the square.

Move the constant term to the right:

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

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

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

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

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -30 + 1

Reorder the terms:
1 + -2x + x2 = -30 + 1

Combine like terms: -30 + 1 = -29
1 + -2x + x2 = -29

Factor a perfect square on the left side:
(x + -1)(x + -1) = -29

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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