12a^2-56a+89=0

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Solution for 12a^2-56a+89=0 equation:


Simplifying
12a2 + -56a + 89 = 0

Reorder the terms:
89 + -56a + 12a2 = 0

Solving
89 + -56a + 12a2 = 0

Solving for variable 'a'.

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

Divide each side by '12'.
7.416666667 + -4.666666667a + a2 = 0

Move the constant term to the right:

Add '-7.416666667' to each side of the equation.
7.416666667 + -4.666666667a + -7.416666667 + a2 = 0 + -7.416666667

Reorder the terms:
7.416666667 + -7.416666667 + -4.666666667a + a2 = 0 + -7.416666667

Combine like terms: 7.416666667 + -7.416666667 = 0.000000000
0.000000000 + -4.666666667a + a2 = 0 + -7.416666667
-4.666666667a + a2 = 0 + -7.416666667

Combine like terms: 0 + -7.416666667 = -7.416666667
-4.666666667a + a2 = -7.416666667

The a term is -4.666666667a.  Take half its coefficient (-2.333333334).
Square it (5.444444448) and add it to both sides.

Add '5.444444448' to each side of the equation.
-4.666666667a + 5.444444448 + a2 = -7.416666667 + 5.444444448

Reorder the terms:
5.444444448 + -4.666666667a + a2 = -7.416666667 + 5.444444448

Combine like terms: -7.416666667 + 5.444444448 = -1.972222219
5.444444448 + -4.666666667a + a2 = -1.972222219

Factor a perfect square on the left side:
(a + -2.333333334)(a + -2.333333334) = -1.972222219

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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