-3*a^2+26*a-3=0

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Solution for -3*a^2+26*a-3=0 equation:


Simplifying
-3a2 + 26a + -3 = 0

Reorder the terms:
-3 + 26a + -3a2 = 0

Solving
-3 + 26a + -3a2 = 0

Solving for variable 'a'.

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

Divide each side by '-3'.
1 + -8.666666667a + a2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -8.666666667a + -1 + a2 = 0 + -1

Reorder the terms:
1 + -1 + -8.666666667a + a2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -8.666666667a + a2 = 0 + -1
-8.666666667a + a2 = 0 + -1

Combine like terms: 0 + -1 = -1
-8.666666667a + a2 = -1

The a term is -8.666666667a.  Take half its coefficient (-4.333333334).
Square it (18.77777778) and add it to both sides.

Add '18.77777778' to each side of the equation.
-8.666666667a + 18.77777778 + a2 = -1 + 18.77777778

Reorder the terms:
18.77777778 + -8.666666667a + a2 = -1 + 18.77777778

Combine like terms: -1 + 18.77777778 = 17.77777778
18.77777778 + -8.666666667a + a2 = 17.77777778

Factor a perfect square on the left side:
(a + -4.333333334)(a + -4.333333334) = 17.77777778

Calculate the square root of the right side: 4.216370214

Break this problem into two subproblems by setting 
(a + -4.333333334) equal to 4.216370214 and -4.216370214.

Subproblem 1

a + -4.333333334 = 4.216370214 Simplifying a + -4.333333334 = 4.216370214 Reorder the terms: -4.333333334 + a = 4.216370214 Solving -4.333333334 + a = 4.216370214 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '4.333333334' to each side of the equation. -4.333333334 + 4.333333334 + a = 4.216370214 + 4.333333334 Combine like terms: -4.333333334 + 4.333333334 = 0.000000000 0.000000000 + a = 4.216370214 + 4.333333334 a = 4.216370214 + 4.333333334 Combine like terms: 4.216370214 + 4.333333334 = 8.549703548 a = 8.549703548 Simplifying a = 8.549703548

Subproblem 2

a + -4.333333334 = -4.216370214 Simplifying a + -4.333333334 = -4.216370214 Reorder the terms: -4.333333334 + a = -4.216370214 Solving -4.333333334 + a = -4.216370214 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '4.333333334' to each side of the equation. -4.333333334 + 4.333333334 + a = -4.216370214 + 4.333333334 Combine like terms: -4.333333334 + 4.333333334 = 0.000000000 0.000000000 + a = -4.216370214 + 4.333333334 a = -4.216370214 + 4.333333334 Combine like terms: -4.216370214 + 4.333333334 = 0.11696312 a = 0.11696312 Simplifying a = 0.11696312

Solution

The solution to the problem is based on the solutions from the subproblems. a = {8.549703548, 0.11696312}

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