7m^2+10m+2=0

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Solution for 7m^2+10m+2=0 equation:


Simplifying
7m2 + 10m + 2 = 0

Reorder the terms:
2 + 10m + 7m2 = 0

Solving
2 + 10m + 7m2 = 0

Solving for variable 'm'.

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

Divide each side by '7'.
0.2857142857 + 1.428571429m + m2 = 0

Move the constant term to the right:

Add '-0.2857142857' to each side of the equation.
0.2857142857 + 1.428571429m + -0.2857142857 + m2 = 0 + -0.2857142857

Reorder the terms:
0.2857142857 + -0.2857142857 + 1.428571429m + m2 = 0 + -0.2857142857

Combine like terms: 0.2857142857 + -0.2857142857 = 0.0000000000
0.0000000000 + 1.428571429m + m2 = 0 + -0.2857142857
1.428571429m + m2 = 0 + -0.2857142857

Combine like terms: 0 + -0.2857142857 = -0.2857142857
1.428571429m + m2 = -0.2857142857

The m term is 1.428571429m.  Take half its coefficient (0.7142857145).
Square it (0.5102040819) and add it to both sides.

Add '0.5102040819' to each side of the equation.
1.428571429m + 0.5102040819 + m2 = -0.2857142857 + 0.5102040819

Reorder the terms:
0.5102040819 + 1.428571429m + m2 = -0.2857142857 + 0.5102040819

Combine like terms: -0.2857142857 + 0.5102040819 = 0.2244897962
0.5102040819 + 1.428571429m + m2 = 0.2244897962

Factor a perfect square on the left side:
(m + 0.7142857145)(m + 0.7142857145) = 0.2244897962

Calculate the square root of the right side: 0.473803542

Break this problem into two subproblems by setting 
(m + 0.7142857145) equal to 0.473803542 and -0.473803542.

Subproblem 1

m + 0.7142857145 = 0.473803542 Simplifying m + 0.7142857145 = 0.473803542 Reorder the terms: 0.7142857145 + m = 0.473803542 Solving 0.7142857145 + m = 0.473803542 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.7142857145' to each side of the equation. 0.7142857145 + -0.7142857145 + m = 0.473803542 + -0.7142857145 Combine like terms: 0.7142857145 + -0.7142857145 = 0.0000000000 0.0000000000 + m = 0.473803542 + -0.7142857145 m = 0.473803542 + -0.7142857145 Combine like terms: 0.473803542 + -0.7142857145 = -0.2404821725 m = -0.2404821725 Simplifying m = -0.2404821725

Subproblem 2

m + 0.7142857145 = -0.473803542 Simplifying m + 0.7142857145 = -0.473803542 Reorder the terms: 0.7142857145 + m = -0.473803542 Solving 0.7142857145 + m = -0.473803542 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.7142857145' to each side of the equation. 0.7142857145 + -0.7142857145 + m = -0.473803542 + -0.7142857145 Combine like terms: 0.7142857145 + -0.7142857145 = 0.0000000000 0.0000000000 + m = -0.473803542 + -0.7142857145 m = -0.473803542 + -0.7142857145 Combine like terms: -0.473803542 + -0.7142857145 = -1.1880892565 m = -1.1880892565 Simplifying m = -1.1880892565

Solution

The solution to the problem is based on the solutions from the subproblems. m = {-0.2404821725, -1.1880892565}

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