20m^2+54m-25=0

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Solution for 20m^2+54m-25=0 equation:


Simplifying
20m2 + 54m + -25 = 0

Reorder the terms:
-25 + 54m + 20m2 = 0

Solving
-25 + 54m + 20m2 = 0

Solving for variable 'm'.

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

Divide each side by '20'.
-1.25 + 2.7m + m2 = 0

Move the constant term to the right:

Add '1.25' to each side of the equation.
-1.25 + 2.7m + 1.25 + m2 = 0 + 1.25

Reorder the terms:
-1.25 + 1.25 + 2.7m + m2 = 0 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + 2.7m + m2 = 0 + 1.25
2.7m + m2 = 0 + 1.25

Combine like terms: 0 + 1.25 = 1.25
2.7m + m2 = 1.25

The m term is 2.7m.  Take half its coefficient (1.35).
Square it (1.8225) and add it to both sides.

Add '1.8225' to each side of the equation.
2.7m + 1.8225 + m2 = 1.25 + 1.8225

Reorder the terms:
1.8225 + 2.7m + m2 = 1.25 + 1.8225

Combine like terms: 1.25 + 1.8225 = 3.0725
1.8225 + 2.7m + m2 = 3.0725

Factor a perfect square on the left side:
(m + 1.35)(m + 1.35) = 3.0725

Calculate the square root of the right side: 1.752854814

Break this problem into two subproblems by setting 
(m + 1.35) equal to 1.752854814 and -1.752854814.

Subproblem 1

m + 1.35 = 1.752854814 Simplifying m + 1.35 = 1.752854814 Reorder the terms: 1.35 + m = 1.752854814 Solving 1.35 + m = 1.752854814 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.35' to each side of the equation. 1.35 + -1.35 + m = 1.752854814 + -1.35 Combine like terms: 1.35 + -1.35 = 0.00 0.00 + m = 1.752854814 + -1.35 m = 1.752854814 + -1.35 Combine like terms: 1.752854814 + -1.35 = 0.402854814 m = 0.402854814 Simplifying m = 0.402854814

Subproblem 2

m + 1.35 = -1.752854814 Simplifying m + 1.35 = -1.752854814 Reorder the terms: 1.35 + m = -1.752854814 Solving 1.35 + m = -1.752854814 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.35' to each side of the equation. 1.35 + -1.35 + m = -1.752854814 + -1.35 Combine like terms: 1.35 + -1.35 = 0.00 0.00 + m = -1.752854814 + -1.35 m = -1.752854814 + -1.35 Combine like terms: -1.752854814 + -1.35 = -3.102854814 m = -3.102854814 Simplifying m = -3.102854814

Solution

The solution to the problem is based on the solutions from the subproblems. m = {0.402854814, -3.102854814}

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