9m^2-7m-70=0

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Solution for 9m^2-7m-70=0 equation:


Simplifying
9m2 + -7m + -70 = 0

Reorder the terms:
-70 + -7m + 9m2 = 0

Solving
-70 + -7m + 9m2 = 0

Solving for variable 'm'.

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

Divide each side by '9'.
-7.777777778 + -0.7777777778m + m2 = 0

Move the constant term to the right:

Add '7.777777778' to each side of the equation.
-7.777777778 + -0.7777777778m + 7.777777778 + m2 = 0 + 7.777777778

Reorder the terms:
-7.777777778 + 7.777777778 + -0.7777777778m + m2 = 0 + 7.777777778

Combine like terms: -7.777777778 + 7.777777778 = 0.000000000
0.000000000 + -0.7777777778m + m2 = 0 + 7.777777778
-0.7777777778m + m2 = 0 + 7.777777778

Combine like terms: 0 + 7.777777778 = 7.777777778
-0.7777777778m + m2 = 7.777777778

The m term is -0.7777777778m.  Take half its coefficient (-0.3888888889).
Square it (0.1512345679) and add it to both sides.

Add '0.1512345679' to each side of the equation.
-0.7777777778m + 0.1512345679 + m2 = 7.777777778 + 0.1512345679

Reorder the terms:
0.1512345679 + -0.7777777778m + m2 = 7.777777778 + 0.1512345679

Combine like terms: 7.777777778 + 0.1512345679 = 7.9290123459
0.1512345679 + -0.7777777778m + m2 = 7.9290123459

Factor a perfect square on the left side:
(m + -0.3888888889)(m + -0.3888888889) = 7.9290123459

Calculate the square root of the right side: 2.815850199

Break this problem into two subproblems by setting 
(m + -0.3888888889) equal to 2.815850199 and -2.815850199.

Subproblem 1

m + -0.3888888889 = 2.815850199 Simplifying m + -0.3888888889 = 2.815850199 Reorder the terms: -0.3888888889 + m = 2.815850199 Solving -0.3888888889 + m = 2.815850199 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.3888888889' to each side of the equation. -0.3888888889 + 0.3888888889 + m = 2.815850199 + 0.3888888889 Combine like terms: -0.3888888889 + 0.3888888889 = 0.0000000000 0.0000000000 + m = 2.815850199 + 0.3888888889 m = 2.815850199 + 0.3888888889 Combine like terms: 2.815850199 + 0.3888888889 = 3.2047390879 m = 3.2047390879 Simplifying m = 3.2047390879

Subproblem 2

m + -0.3888888889 = -2.815850199 Simplifying m + -0.3888888889 = -2.815850199 Reorder the terms: -0.3888888889 + m = -2.815850199 Solving -0.3888888889 + m = -2.815850199 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.3888888889' to each side of the equation. -0.3888888889 + 0.3888888889 + m = -2.815850199 + 0.3888888889 Combine like terms: -0.3888888889 + 0.3888888889 = 0.0000000000 0.0000000000 + m = -2.815850199 + 0.3888888889 m = -2.815850199 + 0.3888888889 Combine like terms: -2.815850199 + 0.3888888889 = -2.4269613101 m = -2.4269613101 Simplifying m = -2.4269613101

Solution

The solution to the problem is based on the solutions from the subproblems. m = {3.2047390879, -2.4269613101}

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