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Simplifying f(x) = x2 + 5x + -15 Multiply f * x fx = x2 + 5x + -15 Reorder the terms: fx = -15 + 5x + x2 Solving fx = -15 + 5x + x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f = -15x-1 + 5 + x Simplifying f = -15x-1 + 5 + x Reorder the terms: f = 5 + -15x-1 + x
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