-3*z^2+6*z-7=0

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Solution for -3*z^2+6*z-7=0 equation:


Simplifying
-3z2 + 6z + -7 = 0

Reorder the terms:
-7 + 6z + -3z2 = 0

Solving
-7 + 6z + -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'.
2.333333333 + -2z + z2 = 0

Move the constant term to the right:

Add '-2.333333333' to each side of the equation.
2.333333333 + -2z + -2.333333333 + z2 = 0 + -2.333333333

Reorder the terms:
2.333333333 + -2.333333333 + -2z + z2 = 0 + -2.333333333

Combine like terms: 2.333333333 + -2.333333333 = 0.000000000
0.000000000 + -2z + z2 = 0 + -2.333333333
-2z + z2 = 0 + -2.333333333

Combine like terms: 0 + -2.333333333 = -2.333333333
-2z + z2 = -2.333333333

The z term is -2z.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2z + 1 + z2 = -2.333333333 + 1

Reorder the terms:
1 + -2z + z2 = -2.333333333 + 1

Combine like terms: -2.333333333 + 1 = -1.333333333
1 + -2z + z2 = -1.333333333

Factor a perfect square on the left side:
(z + -1)(z + -1) = -1.333333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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