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Simplifying f(x) = 3x2 + -7f(-3) Multiply f * x fx = 3x2 + -7f(-3) Reorder the terms for easier multiplication: fx = 3x2 + -7 * -3f Multiply -7 * -3 fx = 3x2 + 21f Reorder the terms: fx = 21f + 3x2 Solving fx = 21f + 3x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-21f' to each side of the equation. -21f + fx = 21f + -21f + 3x2 Combine like terms: 21f + -21f = 0 -21f + fx = 0 + 3x2 -21f + fx = 3x2 Combine like terms: 3x2 + -3x2 = 0 -21f + fx + -3x2 = 0 The solution to this equation could not be determined.
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