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Simplifying h(3a) = x4 + 9x2 + -8 Remove parenthesis around (3a) h * 3a = x4 + 9x2 + -8 Reorder the terms for easier multiplication: 3h * a = x4 + 9x2 + -8 Multiply h * a 3ah = x4 + 9x2 + -8 Reorder the terms: 3ah = -8 + 9x2 + x4 Solving 3ah = -8 + 9x2 + x4 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Divide each side by '3h'. a = -2.666666667h-1 + 3h-1x2 + 0.3333333333h-1x4 Simplifying a = -2.666666667h-1 + 3h-1x2 + 0.3333333333h-1x4
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