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Simplifying d2f = 21 Solving d2f = 21 Solving for variable 'd'. Move all terms containing d to the left, all other terms to the right. Divide each side by 'f'. d2 = 21f-1 Simplifying d2 = 21f-1 Combine like terms: 21f-1 + -21f-1 = 0 d2 + -21f-1 = 0 Factor out the Greatest Common Factor (GCF), 'f-1'. f-1(d2f + -21) = 0Subproblem 1
Set the factor 'f-1' equal to zero and attempt to solve: Simplifying f-1 = 0 Solving f-1 = 0 Move all terms containing d to the left, all other terms to the right. Add '-1f-1' to each side of the equation. f-1 + -1f-1 = 0 + -1f-1 Remove the zero: 0 = -1f-1 Simplifying 0 = -1f-1 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Subproblem 2
Set the factor '(d2f + -21)' equal to zero and attempt to solve: Simplifying d2f + -21 = 0 Reorder the terms: -21 + d2f = 0 Solving -21 + d2f = 0 Move all terms containing d to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + d2f = 0 + 21 Combine like terms: -21 + 21 = 0 0 + d2f = 0 + 21 d2f = 0 + 21 Combine like terms: 0 + 21 = 21 d2f = 21 Divide each side by 'f'. d2 = 21f-1 Simplifying d2 = 21f-1 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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