9z^2+3z+2=0

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Solution for 9z^2+3z+2=0 equation:


Simplifying
9z2 + 3z + 2 = 0

Reorder the terms:
2 + 3z + 9z2 = 0

Solving
2 + 3z + 9z2 = 0

Solving for variable 'z'.

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

Divide each side by '9'.
0.2222222222 + 0.3333333333z + z2 = 0

Move the constant term to the right:

Add '-0.2222222222' to each side of the equation.
0.2222222222 + 0.3333333333z + -0.2222222222 + z2 = 0 + -0.2222222222

Reorder the terms:
0.2222222222 + -0.2222222222 + 0.3333333333z + z2 = 0 + -0.2222222222

Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000
0.0000000000 + 0.3333333333z + z2 = 0 + -0.2222222222
0.3333333333z + z2 = 0 + -0.2222222222

Combine like terms: 0 + -0.2222222222 = -0.2222222222
0.3333333333z + z2 = -0.2222222222

The z term is 0.3333333333z.  Take half its coefficient (0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
0.3333333333z + 0.02777777779 + z2 = -0.2222222222 + 0.02777777779

Reorder the terms:
0.02777777779 + 0.3333333333z + z2 = -0.2222222222 + 0.02777777779

Combine like terms: -0.2222222222 + 0.02777777779 = -0.19444444441
0.02777777779 + 0.3333333333z + z2 = -0.19444444441

Factor a perfect square on the left side:
(z + 0.1666666667)(z + 0.1666666667) = -0.19444444441

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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