9m^2-36m=7

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Solution for 9m^2-36m=7 equation:


Simplifying
9m2 + -36m = 7

Reorder the terms:
-36m + 9m2 = 7

Solving
-36m + 9m2 = 7

Solving for variable 'm'.

Reorder the terms:
-7 + -36m + 9m2 = 7 + -7

Combine like terms: 7 + -7 = 0
-7 + -36m + 9m2 = 0

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

Divide each side by '9'.
-0.7777777778 + -4m + m2 = 0

Move the constant term to the right:

Add '0.7777777778' to each side of the equation.
-0.7777777778 + -4m + 0.7777777778 + m2 = 0 + 0.7777777778

Reorder the terms:
-0.7777777778 + 0.7777777778 + -4m + m2 = 0 + 0.7777777778

Combine like terms: -0.7777777778 + 0.7777777778 = 0.0000000000
0.0000000000 + -4m + m2 = 0 + 0.7777777778
-4m + m2 = 0 + 0.7777777778

Combine like terms: 0 + 0.7777777778 = 0.7777777778
-4m + m2 = 0.7777777778

The m term is -4m.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4m + 4 + m2 = 0.7777777778 + 4

Reorder the terms:
4 + -4m + m2 = 0.7777777778 + 4

Combine like terms: 0.7777777778 + 4 = 4.7777777778
4 + -4m + m2 = 4.7777777778

Factor a perfect square on the left side:
(m + -2)(m + -2) = 4.7777777778

Calculate the square root of the right side: 2.185812841

Break this problem into two subproblems by setting 
(m + -2) equal to 2.185812841 and -2.185812841.

Subproblem 1

m + -2 = 2.185812841 Simplifying m + -2 = 2.185812841 Reorder the terms: -2 + m = 2.185812841 Solving -2 + m = 2.185812841 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + m = 2.185812841 + 2 Combine like terms: -2 + 2 = 0 0 + m = 2.185812841 + 2 m = 2.185812841 + 2 Combine like terms: 2.185812841 + 2 = 4.185812841 m = 4.185812841 Simplifying m = 4.185812841

Subproblem 2

m + -2 = -2.185812841 Simplifying m + -2 = -2.185812841 Reorder the terms: -2 + m = -2.185812841 Solving -2 + m = -2.185812841 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + m = -2.185812841 + 2 Combine like terms: -2 + 2 = 0 0 + m = -2.185812841 + 2 m = -2.185812841 + 2 Combine like terms: -2.185812841 + 2 = -0.185812841 m = -0.185812841 Simplifying m = -0.185812841

Solution

The solution to the problem is based on the solutions from the subproblems. m = {4.185812841, -0.185812841}

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