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Simplifying f(7) = 2x + x2 + 3(4x) + 17 Reorder the terms for easier multiplication: 7f = 2x + x2 + 3(4x) + 17 Remove parenthesis around (4x) 7f = 2x + x2 + 3 * 4x + 17 Multiply 3 * 4 7f = 2x + x2 + 12x + 17 Reorder the terms: 7f = 17 + 2x + 12x + x2 Combine like terms: 2x + 12x = 14x 7f = 17 + 14x + x2 Solving 7f = 17 + 14x + x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by '7'. f = 2.428571429 + 2x + 0.1428571429x2 Simplifying f = 2.428571429 + 2x + 0.1428571429x2
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