28m^2-3m-28=0

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Solution for 28m^2-3m-28=0 equation:


Simplifying
28m2 + -3m + -28 = 0

Reorder the terms:
-28 + -3m + 28m2 = 0

Solving
-28 + -3m + 28m2 = 0

Solving for variable 'm'.

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

Divide each side by '28'.
-1 + -0.1071428571m + m2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -0.1071428571m + 1 + m2 = 0 + 1

Reorder the terms:
-1 + 1 + -0.1071428571m + m2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -0.1071428571m + m2 = 0 + 1
-0.1071428571m + m2 = 0 + 1

Combine like terms: 0 + 1 = 1
-0.1071428571m + m2 = 1

The m term is -0.1071428571m.  Take half its coefficient (-0.05357142855).
Square it (0.002869897957) and add it to both sides.

Add '0.002869897957' to each side of the equation.
-0.1071428571m + 0.002869897957 + m2 = 1 + 0.002869897957

Reorder the terms:
0.002869897957 + -0.1071428571m + m2 = 1 + 0.002869897957

Combine like terms: 1 + 0.002869897957 = 1.002869897957
0.002869897957 + -0.1071428571m + m2 = 1.002869897957

Factor a perfect square on the left side:
(m + -0.05357142855)(m + -0.05357142855) = 1.002869897957

Calculate the square root of the right side: 1.001433921

Break this problem into two subproblems by setting 
(m + -0.05357142855) equal to 1.001433921 and -1.001433921.

Subproblem 1

m + -0.05357142855 = 1.001433921 Simplifying m + -0.05357142855 = 1.001433921 Reorder the terms: -0.05357142855 + m = 1.001433921 Solving -0.05357142855 + m = 1.001433921 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.05357142855' to each side of the equation. -0.05357142855 + 0.05357142855 + m = 1.001433921 + 0.05357142855 Combine like terms: -0.05357142855 + 0.05357142855 = 0.00000000000 0.00000000000 + m = 1.001433921 + 0.05357142855 m = 1.001433921 + 0.05357142855 Combine like terms: 1.001433921 + 0.05357142855 = 1.05500534955 m = 1.05500534955 Simplifying m = 1.05500534955

Subproblem 2

m + -0.05357142855 = -1.001433921 Simplifying m + -0.05357142855 = -1.001433921 Reorder the terms: -0.05357142855 + m = -1.001433921 Solving -0.05357142855 + m = -1.001433921 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.05357142855' to each side of the equation. -0.05357142855 + 0.05357142855 + m = -1.001433921 + 0.05357142855 Combine like terms: -0.05357142855 + 0.05357142855 = 0.00000000000 0.00000000000 + m = -1.001433921 + 0.05357142855 m = -1.001433921 + 0.05357142855 Combine like terms: -1.001433921 + 0.05357142855 = -0.94786249245 m = -0.94786249245 Simplifying m = -0.94786249245

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.05500534955, -0.94786249245}

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