x^2-18+28=-5x-2

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Solution for x^2-18+28=-5x-2 equation:


Simplifying
x2 + -18 + 28 = -5x + -2

Reorder the terms:
-18 + 28 + x2 = -5x + -2

Combine like terms: -18 + 28 = 10
10 + x2 = -5x + -2

Reorder the terms:
10 + x2 = -2 + -5x

Solving
10 + x2 = -2 + -5x

Solving for variable 'x'.

Reorder the terms:
10 + 2 + 5x + x2 = -2 + -5x + 2 + 5x

Combine like terms: 10 + 2 = 12
12 + 5x + x2 = -2 + -5x + 2 + 5x

Reorder the terms:
12 + 5x + x2 = -2 + 2 + -5x + 5x

Combine like terms: -2 + 2 = 0
12 + 5x + x2 = 0 + -5x + 5x
12 + 5x + x2 = -5x + 5x

Combine like terms: -5x + 5x = 0
12 + 5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-12' to each side of the equation.
12 + 5x + -12 + x2 = 0 + -12

Reorder the terms:
12 + -12 + 5x + x2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 5x + x2 = 0 + -12
5x + x2 = 0 + -12

Combine like terms: 0 + -12 = -12
5x + x2 = -12

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = -12 + 6.25

Reorder the terms:
6.25 + 5x + x2 = -12 + 6.25

Combine like terms: -12 + 6.25 = -5.75
6.25 + 5x + x2 = -5.75

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = -5.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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