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Simplifying -6r2 + -5r + -2 = 0 Reorder the terms: -2 + -5r + -6r2 = 0 Solving -2 + -5r + -6r2 = 0 Solving for variable 'r'. Factor out the Greatest Common Factor (GCF), '-1'. -1(2 + 5r + 6r2) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(2 + 5r + 6r2)' equal to zero and attempt to solve: Simplifying 2 + 5r + 6r2 = 0 Solving 2 + 5r + 6r2 = 0 Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. 0.3333333333 + 0.8333333333r + r2 = 0 Move the constant term to the right: Add '-0.3333333333' to each side of the equation. 0.3333333333 + 0.8333333333r + -0.3333333333 + r2 = 0 + -0.3333333333 Reorder the terms: 0.3333333333 + -0.3333333333 + 0.8333333333r + r2 = 0 + -0.3333333333 Combine like terms: 0.3333333333 + -0.3333333333 = 0.0000000000 0.0000000000 + 0.8333333333r + r2 = 0 + -0.3333333333 0.8333333333r + r2 = 0 + -0.3333333333 Combine like terms: 0 + -0.3333333333 = -0.3333333333 0.8333333333r + r2 = -0.3333333333 The r term is 0.8333333333r. Take half its coefficient (0.4166666667). Square it (0.1736111111) and add it to both sides. Add '0.1736111111' to each side of the equation. 0.8333333333r + 0.1736111111 + r2 = -0.3333333333 + 0.1736111111 Reorder the terms: 0.1736111111 + 0.8333333333r + r2 = -0.3333333333 + 0.1736111111 Combine like terms: -0.3333333333 + 0.1736111111 = -0.1597222222 0.1736111111 + 0.8333333333r + r2 = -0.1597222222 Factor a perfect square on the left side: (r + 0.4166666667)(r + 0.4166666667) = -0.1597222222 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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