1x-18=18+5x*x

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Solution for 1x-18=18+5x*x equation:


Simplifying
1x + -18 = 18 + 5x * x

Reorder the terms:
-18 + 1x = 18 + 5x * x

Multiply x * x
-18 + 1x = 18 + 5x2

Solving
-18 + 1x = 18 + 5x2

Solving for variable 'x'.

Reorder the terms:
-18 + -18 + 1x + -5x2 = 18 + 5x2 + -18 + -5x2

Combine like terms: -18 + -18 = -36
-36 + 1x + -5x2 = 18 + 5x2 + -18 + -5x2

Reorder the terms:
-36 + 1x + -5x2 = 18 + -18 + 5x2 + -5x2

Combine like terms: 18 + -18 = 0
-36 + 1x + -5x2 = 0 + 5x2 + -5x2
-36 + 1x + -5x2 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-36 + 1x + -5x2 = 0

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
7.2 + -0.2x + x2 = 0

Move the constant term to the right:

Add '-7.2' to each side of the equation.
7.2 + -0.2x + -7.2 + x2 = 0 + -7.2

Reorder the terms:
7.2 + -7.2 + -0.2x + x2 = 0 + -7.2

Combine like terms: 7.2 + -7.2 = 0.0
0.0 + -0.2x + x2 = 0 + -7.2
-0.2x + x2 = 0 + -7.2

Combine like terms: 0 + -7.2 = -7.2
-0.2x + x2 = -7.2

The x term is -0.2x.  Take half its coefficient (-0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
-0.2x + 0.01 + x2 = -7.2 + 0.01

Reorder the terms:
0.01 + -0.2x + x2 = -7.2 + 0.01

Combine like terms: -7.2 + 0.01 = -7.19
0.01 + -0.2x + x2 = -7.19

Factor a perfect square on the left side:
(x + -0.1)(x + -0.1) = -7.19

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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