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Simplifying f(x) = 5x2 + (2x + -7) + 3 Multiply f * x fx = 5x2 + (2x + -7) + 3 Reorder the terms: fx = 5x2 + (-7 + 2x) + 3 Remove parenthesis around (-7 + 2x) fx = 5x2 + -7 + 2x + 3 Reorder the terms: fx = -7 + 3 + 2x + 5x2 Combine like terms: -7 + 3 = -4 fx = -4 + 2x + 5x2 Solving fx = -4 + 2x + 5x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f = -4x-1 + 2 + 5x Simplifying f = -4x-1 + 2 + 5x Reorder the terms: f = 2 + -4x-1 + 5x
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