16m^2+8m-47=0

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Solution for 16m^2+8m-47=0 equation:


Simplifying
16m2 + 8m + -47 = 0

Reorder the terms:
-47 + 8m + 16m2 = 0

Solving
-47 + 8m + 16m2 = 0

Solving for variable 'm'.

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

Divide each side by '16'.
-2.9375 + 0.5m + m2 = 0

Move the constant term to the right:

Add '2.9375' to each side of the equation.
-2.9375 + 0.5m + 2.9375 + m2 = 0 + 2.9375

Reorder the terms:
-2.9375 + 2.9375 + 0.5m + m2 = 0 + 2.9375

Combine like terms: -2.9375 + 2.9375 = 0.0000
0.0000 + 0.5m + m2 = 0 + 2.9375
0.5m + m2 = 0 + 2.9375

Combine like terms: 0 + 2.9375 = 2.9375
0.5m + m2 = 2.9375

The m term is 0.5m.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5m + 0.0625 + m2 = 2.9375 + 0.0625

Reorder the terms:
0.0625 + 0.5m + m2 = 2.9375 + 0.0625

Combine like terms: 2.9375 + 0.0625 = 3
0.0625 + 0.5m + m2 = 3

Factor a perfect square on the left side:
(m + 0.25)(m + 0.25) = 3

Calculate the square root of the right side: 1.732050808

Break this problem into two subproblems by setting 
(m + 0.25) equal to 1.732050808 and -1.732050808.

Subproblem 1

m + 0.25 = 1.732050808 Simplifying m + 0.25 = 1.732050808 Reorder the terms: 0.25 + m = 1.732050808 Solving 0.25 + m = 1.732050808 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + m = 1.732050808 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + m = 1.732050808 + -0.25 m = 1.732050808 + -0.25 Combine like terms: 1.732050808 + -0.25 = 1.482050808 m = 1.482050808 Simplifying m = 1.482050808

Subproblem 2

m + 0.25 = -1.732050808 Simplifying m + 0.25 = -1.732050808 Reorder the terms: 0.25 + m = -1.732050808 Solving 0.25 + m = -1.732050808 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + m = -1.732050808 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + m = -1.732050808 + -0.25 m = -1.732050808 + -0.25 Combine like terms: -1.732050808 + -0.25 = -1.982050808 m = -1.982050808 Simplifying m = -1.982050808

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.482050808, -1.982050808}

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