4m^2-16m-17=-18

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Solution for 4m^2-16m-17=-18 equation:


Simplifying
4m2 + -16m + -17 = -18

Reorder the terms:
-17 + -16m + 4m2 = -18

Solving
-17 + -16m + 4m2 = -18

Solving for variable 'm'.

Reorder the terms:
-17 + 18 + -16m + 4m2 = -18 + 18

Combine like terms: -17 + 18 = 1
1 + -16m + 4m2 = -18 + 18

Combine like terms: -18 + 18 = 0
1 + -16m + 4m2 = 0

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

Divide each side by '4'.
0.25 + -4m + m2 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + -4m + -0.25 + m2 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + -4m + m2 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + -4m + m2 = 0 + -0.25
-4m + m2 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
-4m + m2 = -0.25

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 = -0.25 + 4

Reorder the terms:
4 + -4m + m2 = -0.25 + 4

Combine like terms: -0.25 + 4 = 3.75
4 + -4m + m2 = 3.75

Factor a perfect square on the left side:
(m + -2)(m + -2) = 3.75

Calculate the square root of the right side: 1.936491673

Break this problem into two subproblems by setting 
(m + -2) equal to 1.936491673 and -1.936491673.

Subproblem 1

m + -2 = 1.936491673 Simplifying m + -2 = 1.936491673 Reorder the terms: -2 + m = 1.936491673 Solving -2 + m = 1.936491673 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 = 1.936491673 + 2 Combine like terms: -2 + 2 = 0 0 + m = 1.936491673 + 2 m = 1.936491673 + 2 Combine like terms: 1.936491673 + 2 = 3.936491673 m = 3.936491673 Simplifying m = 3.936491673

Subproblem 2

m + -2 = -1.936491673 Simplifying m + -2 = -1.936491673 Reorder the terms: -2 + m = -1.936491673 Solving -2 + m = -1.936491673 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 = -1.936491673 + 2 Combine like terms: -2 + 2 = 0 0 + m = -1.936491673 + 2 m = -1.936491673 + 2 Combine like terms: -1.936491673 + 2 = 0.063508327 m = 0.063508327 Simplifying m = 0.063508327

Solution

The solution to the problem is based on the solutions from the subproblems. m = {3.936491673, 0.063508327}

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