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Simplifying f(3x) = 2(3x2) + -5 Remove parenthesis around (3x) f * 3x = 2(3x2) + -5 Reorder the terms for easier multiplication: 3f * x = 2(3x2) + -5 Multiply f * x 3fx = 2(3x2) + -5 Remove parenthesis around (3x2) 3fx = 2 * 3x2 + -5 Multiply 2 * 3 3fx = 6x2 + -5 Reorder the terms: 3fx = -5 + 6x2 Solving 3fx = -5 + 6x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by '3x'. f = -1.666666667x-1 + 2x Simplifying f = -1.666666667x-1 + 2x
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