5q^2+7q+11=0

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Solution for 5q^2+7q+11=0 equation:


Simplifying
5q2 + 7q + 11 = 0

Reorder the terms:
11 + 7q + 5q2 = 0

Solving
11 + 7q + 5q2 = 0

Solving for variable 'q'.

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

Divide each side by '5'.
2.2 + 1.4q + q2 = 0

Move the constant term to the right:

Add '-2.2' to each side of the equation.
2.2 + 1.4q + -2.2 + q2 = 0 + -2.2

Reorder the terms:
2.2 + -2.2 + 1.4q + q2 = 0 + -2.2

Combine like terms: 2.2 + -2.2 = 0.0
0.0 + 1.4q + q2 = 0 + -2.2
1.4q + q2 = 0 + -2.2

Combine like terms: 0 + -2.2 = -2.2
1.4q + q2 = -2.2

The q term is 1.4q.  Take half its coefficient (0.7).
Square it (0.49) and add it to both sides.

Add '0.49' to each side of the equation.
1.4q + 0.49 + q2 = -2.2 + 0.49

Reorder the terms:
0.49 + 1.4q + q2 = -2.2 + 0.49

Combine like terms: -2.2 + 0.49 = -1.71
0.49 + 1.4q + q2 = -1.71

Factor a perfect square on the left side:
(q + 0.7)(q + 0.7) = -1.71

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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