x^2=10x-30

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


Simplifying
x2 = 10x + -30

Reorder the terms:
x2 = -30 + 10x

Solving
x2 = -30 + 10x

Solving for variable 'x'.

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

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

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

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

Begin completing the square.

Move the constant term to the right:

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

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

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

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

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = -30 + 25

Reorder the terms:
25 + -10x + x2 = -30 + 25

Combine like terms: -30 + 25 = -5
25 + -10x + x2 = -5

Factor a perfect square on the left side:
(x + -5)(x + -5) = -5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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