3x^2+21x+41=0

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Solution for 3x^2+21x+41=0 equation:


Simplifying
3x2 + 21x + 41 = 0

Reorder the terms:
41 + 21x + 3x2 = 0

Solving
41 + 21x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
13.66666667 + 7x + x2 = 0

Move the constant term to the right:

Add '-13.66666667' to each side of the equation.
13.66666667 + 7x + -13.66666667 + x2 = 0 + -13.66666667

Reorder the terms:
13.66666667 + -13.66666667 + 7x + x2 = 0 + -13.66666667

Combine like terms: 13.66666667 + -13.66666667 = 0.00000000
0.00000000 + 7x + x2 = 0 + -13.66666667
7x + x2 = 0 + -13.66666667

Combine like terms: 0 + -13.66666667 = -13.66666667
7x + x2 = -13.66666667

The x term is 7x.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7x + 12.25 + x2 = -13.66666667 + 12.25

Reorder the terms:
12.25 + 7x + x2 = -13.66666667 + 12.25

Combine like terms: -13.66666667 + 12.25 = -1.41666667
12.25 + 7x + x2 = -1.41666667

Factor a perfect square on the left side:
(x + 3.5)(x + 3.5) = -1.41666667

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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