50r^2+99r+48=0

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Solution for 50r^2+99r+48=0 equation:


Simplifying
50r2 + 99r + 48 = 0

Reorder the terms:
48 + 99r + 50r2 = 0

Solving
48 + 99r + 50r2 = 0

Solving for variable 'r'.

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

Divide each side by '50'.
0.96 + 1.98r + r2 = 0

Move the constant term to the right:

Add '-0.96' to each side of the equation.
0.96 + 1.98r + -0.96 + r2 = 0 + -0.96

Reorder the terms:
0.96 + -0.96 + 1.98r + r2 = 0 + -0.96

Combine like terms: 0.96 + -0.96 = 0.00
0.00 + 1.98r + r2 = 0 + -0.96
1.98r + r2 = 0 + -0.96

Combine like terms: 0 + -0.96 = -0.96
1.98r + r2 = -0.96

The r term is 1.98r.  Take half its coefficient (0.99).
Square it (0.9801) and add it to both sides.

Add '0.9801' to each side of the equation.
1.98r + 0.9801 + r2 = -0.96 + 0.9801

Reorder the terms:
0.9801 + 1.98r + r2 = -0.96 + 0.9801

Combine like terms: -0.96 + 0.9801 = 0.0201
0.9801 + 1.98r + r2 = 0.0201

Factor a perfect square on the left side:
(r + 0.99)(r + 0.99) = 0.0201

Calculate the square root of the right side: 0.141774469

Break this problem into two subproblems by setting 
(r + 0.99) equal to 0.141774469 and -0.141774469.

Subproblem 1

r + 0.99 = 0.141774469 Simplifying r + 0.99 = 0.141774469 Reorder the terms: 0.99 + r = 0.141774469 Solving 0.99 + r = 0.141774469 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-0.99' to each side of the equation. 0.99 + -0.99 + r = 0.141774469 + -0.99 Combine like terms: 0.99 + -0.99 = 0.00 0.00 + r = 0.141774469 + -0.99 r = 0.141774469 + -0.99 Combine like terms: 0.141774469 + -0.99 = -0.848225531 r = -0.848225531 Simplifying r = -0.848225531

Subproblem 2

r + 0.99 = -0.141774469 Simplifying r + 0.99 = -0.141774469 Reorder the terms: 0.99 + r = -0.141774469 Solving 0.99 + r = -0.141774469 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-0.99' to each side of the equation. 0.99 + -0.99 + r = -0.141774469 + -0.99 Combine like terms: 0.99 + -0.99 = 0.00 0.00 + r = -0.141774469 + -0.99 r = -0.141774469 + -0.99 Combine like terms: -0.141774469 + -0.99 = -1.131774469 r = -1.131774469 Simplifying r = -1.131774469

Solution

The solution to the problem is based on the solutions from the subproblems. r = {-0.848225531, -1.131774469}

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