10x^2+21x+27=0

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Solution for 10x^2+21x+27=0 equation:


Simplifying
10x2 + 21x + 27 = 0

Reorder the terms:
27 + 21x + 10x2 = 0

Solving
27 + 21x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
2.7 + 2.1x + x2 = 0

Move the constant term to the right:

Add '-2.7' to each side of the equation.
2.7 + 2.1x + -2.7 + x2 = 0 + -2.7

Reorder the terms:
2.7 + -2.7 + 2.1x + x2 = 0 + -2.7

Combine like terms: 2.7 + -2.7 = 0.0
0.0 + 2.1x + x2 = 0 + -2.7
2.1x + x2 = 0 + -2.7

Combine like terms: 0 + -2.7 = -2.7
2.1x + x2 = -2.7

The x term is 2.1x.  Take half its coefficient (1.05).
Square it (1.1025) and add it to both sides.

Add '1.1025' to each side of the equation.
2.1x + 1.1025 + x2 = -2.7 + 1.1025

Reorder the terms:
1.1025 + 2.1x + x2 = -2.7 + 1.1025

Combine like terms: -2.7 + 1.1025 = -1.5975
1.1025 + 2.1x + x2 = -1.5975

Factor a perfect square on the left side:
(x + 1.05)(x + 1.05) = -1.5975

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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