(m^2+7m+89)=77*18

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Solution for (m^2+7m+89)=77*18 equation:


Simplifying
(m2 + 7m + 89) = 77 * 18

Reorder the terms:
(89 + 7m + m2) = 77 * 18

Remove parenthesis around (89 + 7m + m2)
89 + 7m + m2 = 77 * 18

Multiply 77 * 18
89 + 7m + m2 = 1386

Solving
89 + 7m + m2 = 1386

Solving for variable 'm'.

Reorder the terms:
89 + -1386 + 7m + m2 = 1386 + -1386

Combine like terms: 89 + -1386 = -1297
-1297 + 7m + m2 = 1386 + -1386

Combine like terms: 1386 + -1386 = 0
-1297 + 7m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '1297' to each side of the equation.
-1297 + 7m + 1297 + m2 = 0 + 1297

Reorder the terms:
-1297 + 1297 + 7m + m2 = 0 + 1297

Combine like terms: -1297 + 1297 = 0
0 + 7m + m2 = 0 + 1297
7m + m2 = 0 + 1297

Combine like terms: 0 + 1297 = 1297
7m + m2 = 1297

The m term is 7m.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7m + 12.25 + m2 = 1297 + 12.25

Reorder the terms:
12.25 + 7m + m2 = 1297 + 12.25

Combine like terms: 1297 + 12.25 = 1309.25
12.25 + 7m + m2 = 1309.25

Factor a perfect square on the left side:
(m + 3.5)(m + 3.5) = 1309.25

Calculate the square root of the right side: 36.183559803

Break this problem into two subproblems by setting 
(m + 3.5) equal to 36.183559803 and -36.183559803.

Subproblem 1

m + 3.5 = 36.183559803 Simplifying m + 3.5 = 36.183559803 Reorder the terms: 3.5 + m = 36.183559803 Solving 3.5 + m = 36.183559803 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + m = 36.183559803 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + m = 36.183559803 + -3.5 m = 36.183559803 + -3.5 Combine like terms: 36.183559803 + -3.5 = 32.683559803 m = 32.683559803 Simplifying m = 32.683559803

Subproblem 2

m + 3.5 = -36.183559803 Simplifying m + 3.5 = -36.183559803 Reorder the terms: 3.5 + m = -36.183559803 Solving 3.5 + m = -36.183559803 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + m = -36.183559803 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + m = -36.183559803 + -3.5 m = -36.183559803 + -3.5 Combine like terms: -36.183559803 + -3.5 = -39.683559803 m = -39.683559803 Simplifying m = -39.683559803

Solution

The solution to the problem is based on the solutions from the subproblems. m = {32.683559803, -39.683559803}

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