8m^2-16m-35=0

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Solution for 8m^2-16m-35=0 equation:


Simplifying
8m2 + -16m + -35 = 0

Reorder the terms:
-35 + -16m + 8m2 = 0

Solving
-35 + -16m + 8m2 = 0

Solving for variable 'm'.

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

Divide each side by '8'.
-4.375 + -2m + m2 = 0

Move the constant term to the right:

Add '4.375' to each side of the equation.
-4.375 + -2m + 4.375 + m2 = 0 + 4.375

Reorder the terms:
-4.375 + 4.375 + -2m + m2 = 0 + 4.375

Combine like terms: -4.375 + 4.375 = 0.000
0.000 + -2m + m2 = 0 + 4.375
-2m + m2 = 0 + 4.375

Combine like terms: 0 + 4.375 = 4.375
-2m + m2 = 4.375

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

Add '1' to each side of the equation.
-2m + 1 + m2 = 4.375 + 1

Reorder the terms:
1 + -2m + m2 = 4.375 + 1

Combine like terms: 4.375 + 1 = 5.375
1 + -2m + m2 = 5.375

Factor a perfect square on the left side:
(m + -1)(m + -1) = 5.375

Calculate the square root of the right side: 2.318404624

Break this problem into two subproblems by setting 
(m + -1) equal to 2.318404624 and -2.318404624.

Subproblem 1

m + -1 = 2.318404624 Simplifying m + -1 = 2.318404624 Reorder the terms: -1 + m = 2.318404624 Solving -1 + m = 2.318404624 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + m = 2.318404624 + 1 Combine like terms: -1 + 1 = 0 0 + m = 2.318404624 + 1 m = 2.318404624 + 1 Combine like terms: 2.318404624 + 1 = 3.318404624 m = 3.318404624 Simplifying m = 3.318404624

Subproblem 2

m + -1 = -2.318404624 Simplifying m + -1 = -2.318404624 Reorder the terms: -1 + m = -2.318404624 Solving -1 + m = -2.318404624 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + m = -2.318404624 + 1 Combine like terms: -1 + 1 = 0 0 + m = -2.318404624 + 1 m = -2.318404624 + 1 Combine like terms: -2.318404624 + 1 = -1.318404624 m = -1.318404624 Simplifying m = -1.318404624

Solution

The solution to the problem is based on the solutions from the subproblems. m = {3.318404624, -1.318404624}

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