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Simplifying a4 + 73a2 + 72 = 0 Reorder the terms: 72 + 73a2 + a4 = 0 Solving 72 + 73a2 + a4 = 0 Solving for variable 'a'. Factor a trinomial. (72 + a2)(1 + a2) = 0Subproblem 1
Set the factor '(72 + a2)' equal to zero and attempt to solve: Simplifying 72 + a2 = 0 Solving 72 + a2 = 0 Move all terms containing a to the left, all other terms to the right. Add '-72' to each side of the equation. 72 + -72 + a2 = 0 + -72 Combine like terms: 72 + -72 = 0 0 + a2 = 0 + -72 a2 = 0 + -72 Combine like terms: 0 + -72 = -72 a2 = -72 Simplifying a2 = -72 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 '(1 + a2)' equal to zero and attempt to solve: Simplifying 1 + a2 = 0 Solving 1 + a2 = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + a2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + a2 = 0 + -1 a2 = 0 + -1 Combine like terms: 0 + -1 = -1 a2 = -1 Simplifying a2 = -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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