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Simplifying f(x) = -28x2 + 7x Multiply f * x fx = -28x2 + 7x Reorder the terms: fx = 7x + -28x2 Solving fx = 7x + -28x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f = 7 + -28x Simplifying f = 7 + -28x
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