7m^2+8m+12=0

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Solution for 7m^2+8m+12=0 equation:


Simplifying
7m2 + 8m + 12 = 0

Reorder the terms:
12 + 8m + 7m2 = 0

Solving
12 + 8m + 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'.
1.714285714 + 1.142857143m + m2 = 0

Move the constant term to the right:

Add '-1.714285714' to each side of the equation.
1.714285714 + 1.142857143m + -1.714285714 + m2 = 0 + -1.714285714

Reorder the terms:
1.714285714 + -1.714285714 + 1.142857143m + m2 = 0 + -1.714285714

Combine like terms: 1.714285714 + -1.714285714 = 0.000000000
0.000000000 + 1.142857143m + m2 = 0 + -1.714285714
1.142857143m + m2 = 0 + -1.714285714

Combine like terms: 0 + -1.714285714 = -1.714285714
1.142857143m + m2 = -1.714285714

The m term is 1.142857143m.  Take half its coefficient (0.5714285715).
Square it (0.3265306123) and add it to both sides.

Add '0.3265306123' to each side of the equation.
1.142857143m + 0.3265306123 + m2 = -1.714285714 + 0.3265306123

Reorder the terms:
0.3265306123 + 1.142857143m + m2 = -1.714285714 + 0.3265306123

Combine like terms: -1.714285714 + 0.3265306123 = -1.3877551017
0.3265306123 + 1.142857143m + m2 = -1.3877551017

Factor a perfect square on the left side:
(m + 0.5714285715)(m + 0.5714285715) = -1.3877551017

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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