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Simplifying a(a + 4) * 0.2a = 68 Reorder the terms: a(4 + a) * 0.2a = 68 Reorder the terms for easier multiplication: 0.2a * a(4 + a) = 68 Multiply a * a 0.2a2(4 + a) = 68 (4 * 0.2a2 + a * 0.2a2) = 68 (0.8a2 + 0.2a3) = 68 Solving 0.8a2 + 0.2a3 = 68 Solving for variable 'a'. Reorder the terms: -68 + 0.8a2 + 0.2a3 = 68 + -68 Combine like terms: 68 + -68 = 0 -68 + 0.8a2 + 0.2a3 = 0 The solution to this equation could not be determined.
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