3z^2-5z+11=

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Solution for 3z^2-5z+11= equation:


Simplifying
3z2 + -5z + 11 = 0

Reorder the terms:
11 + -5z + 3z2 = 0

Solving
11 + -5z + 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'.
3.666666667 + -1.666666667z + z2 = 0

Move the constant term to the right:

Add '-3.666666667' to each side of the equation.
3.666666667 + -1.666666667z + -3.666666667 + z2 = 0 + -3.666666667

Reorder the terms:
3.666666667 + -3.666666667 + -1.666666667z + z2 = 0 + -3.666666667

Combine like terms: 3.666666667 + -3.666666667 = 0.000000000
0.000000000 + -1.666666667z + z2 = 0 + -3.666666667
-1.666666667z + z2 = 0 + -3.666666667

Combine like terms: 0 + -3.666666667 = -3.666666667
-1.666666667z + z2 = -3.666666667

The z term is -1.666666667z.  Take half its coefficient (-0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
-1.666666667z + 0.6944444447 + z2 = -3.666666667 + 0.6944444447

Reorder the terms:
0.6944444447 + -1.666666667z + z2 = -3.666666667 + 0.6944444447

Combine like terms: -3.666666667 + 0.6944444447 = -2.9722222223
0.6944444447 + -1.666666667z + z2 = -2.9722222223

Factor a perfect square on the left side:
(z + -0.8333333335)(z + -0.8333333335) = -2.9722222223

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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