3Z^2-18Z+62=0

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Solution for 3Z^2-18Z+62=0 equation:


Simplifying
3Z2 + -18Z + 62 = 0

Reorder the terms:
62 + -18Z + 3Z2 = 0

Solving
62 + -18Z + 3Z2 = 0

Solving for variable 'Z'.

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

Divide each side by '3'.
20.66666667 + -6Z + Z2 = 0

Move the constant term to the right:

Add '-20.66666667' to each side of the equation.
20.66666667 + -6Z + -20.66666667 + Z2 = 0 + -20.66666667

Reorder the terms:
20.66666667 + -20.66666667 + -6Z + Z2 = 0 + -20.66666667

Combine like terms: 20.66666667 + -20.66666667 = 0.00000000
0.00000000 + -6Z + Z2 = 0 + -20.66666667
-6Z + Z2 = 0 + -20.66666667

Combine like terms: 0 + -20.66666667 = -20.66666667
-6Z + Z2 = -20.66666667

The Z term is -6Z.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6Z + 9 + Z2 = -20.66666667 + 9

Reorder the terms:
9 + -6Z + Z2 = -20.66666667 + 9

Combine like terms: -20.66666667 + 9 = -11.66666667
9 + -6Z + Z2 = -11.66666667

Factor a perfect square on the left side:
(Z + -3)(Z + -3) = -11.66666667

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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