8m^2+6m+1=8

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Solution for 8m^2+6m+1=8 equation:


Simplifying
8m2 + 6m + 1 = 8

Reorder the terms:
1 + 6m + 8m2 = 8

Solving
1 + 6m + 8m2 = 8

Solving for variable 'm'.

Reorder the terms:
1 + -8 + 6m + 8m2 = 8 + -8

Combine like terms: 1 + -8 = -7
-7 + 6m + 8m2 = 8 + -8

Combine like terms: 8 + -8 = 0
-7 + 6m + 8m2 = 0

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

Divide each side by '8'.
-0.875 + 0.75m + m2 = 0

Move the constant term to the right:

Add '0.875' to each side of the equation.
-0.875 + 0.75m + 0.875 + m2 = 0 + 0.875

Reorder the terms:
-0.875 + 0.875 + 0.75m + m2 = 0 + 0.875

Combine like terms: -0.875 + 0.875 = 0.000
0.000 + 0.75m + m2 = 0 + 0.875
0.75m + m2 = 0 + 0.875

Combine like terms: 0 + 0.875 = 0.875
0.75m + m2 = 0.875

The m term is 0.75m.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75m + 0.140625 + m2 = 0.875 + 0.140625

Reorder the terms:
0.140625 + 0.75m + m2 = 0.875 + 0.140625

Combine like terms: 0.875 + 0.140625 = 1.015625
0.140625 + 0.75m + m2 = 1.015625

Factor a perfect square on the left side:
(m + 0.375)(m + 0.375) = 1.015625

Calculate the square root of the right side: 1.007782219

Break this problem into two subproblems by setting 
(m + 0.375) equal to 1.007782219 and -1.007782219.

Subproblem 1

m + 0.375 = 1.007782219 Simplifying m + 0.375 = 1.007782219 Reorder the terms: 0.375 + m = 1.007782219 Solving 0.375 + m = 1.007782219 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + m = 1.007782219 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + m = 1.007782219 + -0.375 m = 1.007782219 + -0.375 Combine like terms: 1.007782219 + -0.375 = 0.632782219 m = 0.632782219 Simplifying m = 0.632782219

Subproblem 2

m + 0.375 = -1.007782219 Simplifying m + 0.375 = -1.007782219 Reorder the terms: 0.375 + m = -1.007782219 Solving 0.375 + m = -1.007782219 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + m = -1.007782219 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + m = -1.007782219 + -0.375 m = -1.007782219 + -0.375 Combine like terms: -1.007782219 + -0.375 = -1.382782219 m = -1.382782219 Simplifying m = -1.382782219

Solution

The solution to the problem is based on the solutions from the subproblems. m = {0.632782219, -1.382782219}

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