x^2+3x+125=0

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Solution for x^2+3x+125=0 equation:


Simplifying
x2 + 3x + 125 = 0

Reorder the terms:
125 + 3x + x2 = 0

Solving
125 + 3x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-125' to each side of the equation.
125 + 3x + -125 + x2 = 0 + -125

Reorder the terms:
125 + -125 + 3x + x2 = 0 + -125

Combine like terms: 125 + -125 = 0
0 + 3x + x2 = 0 + -125
3x + x2 = 0 + -125

Combine like terms: 0 + -125 = -125
3x + x2 = -125

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = -125 + 2.25

Reorder the terms:
2.25 + 3x + x2 = -125 + 2.25

Combine like terms: -125 + 2.25 = -122.75
2.25 + 3x + x2 = -122.75

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = -122.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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