7m^2+24m-2=m^2-9

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Solution for 7m^2+24m-2=m^2-9 equation:


Simplifying
7m2 + 24m + -2 = m2 + -9

Reorder the terms:
-2 + 24m + 7m2 = m2 + -9

Reorder the terms:
-2 + 24m + 7m2 = -9 + m2

Solving
-2 + 24m + 7m2 = -9 + m2

Solving for variable 'm'.

Reorder the terms:
-2 + 9 + 24m + 7m2 + -1m2 = -9 + m2 + 9 + -1m2

Combine like terms: -2 + 9 = 7
7 + 24m + 7m2 + -1m2 = -9 + m2 + 9 + -1m2

Combine like terms: 7m2 + -1m2 = 6m2
7 + 24m + 6m2 = -9 + m2 + 9 + -1m2

Reorder the terms:
7 + 24m + 6m2 = -9 + 9 + m2 + -1m2

Combine like terms: -9 + 9 = 0
7 + 24m + 6m2 = 0 + m2 + -1m2
7 + 24m + 6m2 = m2 + -1m2

Combine like terms: m2 + -1m2 = 0
7 + 24m + 6m2 = 0

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

Divide each side by '6'.
1.166666667 + 4m + m2 = 0

Move the constant term to the right:

Add '-1.166666667' to each side of the equation.
1.166666667 + 4m + -1.166666667 + m2 = 0 + -1.166666667

Reorder the terms:
1.166666667 + -1.166666667 + 4m + m2 = 0 + -1.166666667

Combine like terms: 1.166666667 + -1.166666667 = 0.000000000
0.000000000 + 4m + m2 = 0 + -1.166666667
4m + m2 = 0 + -1.166666667

Combine like terms: 0 + -1.166666667 = -1.166666667
4m + m2 = -1.166666667

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 = -1.166666667 + 4

Reorder the terms:
4 + 4m + m2 = -1.166666667 + 4

Combine like terms: -1.166666667 + 4 = 2.833333333
4 + 4m + m2 = 2.833333333

Factor a perfect square on the left side:
(m + 2)(m + 2) = 2.833333333

Calculate the square root of the right side: 1.683250823

Break this problem into two subproblems by setting 
(m + 2) equal to 1.683250823 and -1.683250823.

Subproblem 1

m + 2 = 1.683250823 Simplifying m + 2 = 1.683250823 Reorder the terms: 2 + m = 1.683250823 Solving 2 + m = 1.683250823 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 = 1.683250823 + -2 Combine like terms: 2 + -2 = 0 0 + m = 1.683250823 + -2 m = 1.683250823 + -2 Combine like terms: 1.683250823 + -2 = -0.316749177 m = -0.316749177 Simplifying m = -0.316749177

Subproblem 2

m + 2 = -1.683250823 Simplifying m + 2 = -1.683250823 Reorder the terms: 2 + m = -1.683250823 Solving 2 + m = -1.683250823 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 = -1.683250823 + -2 Combine like terms: 2 + -2 = 0 0 + m = -1.683250823 + -2 m = -1.683250823 + -2 Combine like terms: -1.683250823 + -2 = -3.683250823 m = -3.683250823 Simplifying m = -3.683250823

Solution

The solution to the problem is based on the solutions from the subproblems. m = {-0.316749177, -3.683250823}

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