(x(x-1.8))=-1.3225

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Solution for (x(x-1.8))=-1.3225 equation:


Simplifying
(x(x + -1.8)) = -1.3225

Reorder the terms:
(x(-1.8 + x)) = -1.3225
((-1.8 * x + x * x)) = -1.3225
((-1.8x + x2)) = -1.3225
(-1.8x + x2) = -1.3225

Remove parenthesis around (-1.8x + x2)
-1.8x + x2 = -1.3225

Solving
-1.8x + x2 = -1.3225

Solving for variable 'x'.

Reorder the terms:
1.3225 + -1.8x + x2 = -1.3225 + 1.3225

Combine like terms: -1.3225 + 1.3225 = 0.0000
1.3225 + -1.8x + x2 = 0.0000

Begin completing the square.

Move the constant term to the right:

Add '-1.3225' to each side of the equation.
1.3225 + -1.8x + -1.3225 + x2 = 0.0000 + -1.3225

Reorder the terms:
1.3225 + -1.3225 + -1.8x + x2 = 0.0000 + -1.3225

Combine like terms: 1.3225 + -1.3225 = 0.0000
0.0000 + -1.8x + x2 = 0.0000 + -1.3225
-1.8x + x2 = 0.0000 + -1.3225

Combine like terms: 0.0000 + -1.3225 = -1.3225
-1.8x + x2 = -1.3225

The x term is -1.8x.  Take half its coefficient (-0.9).
Square it (0.81) and add it to both sides.

Add '0.81' to each side of the equation.
-1.8x + 0.81 + x2 = -1.3225 + 0.81

Reorder the terms:
0.81 + -1.8x + x2 = -1.3225 + 0.81

Combine like terms: -1.3225 + 0.81 = -0.5125
0.81 + -1.8x + x2 = -0.5125

Factor a perfect square on the left side:
(x + -0.9)(x + -0.9) = -0.5125

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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