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Simplifying f(x) = 2x2 + 6x + -9f(4) Multiply f * x fx = 2x2 + 6x + -9f(4) Reorder the terms for easier multiplication: fx = 2x2 + 6x + -9 * 4f Multiply -9 * 4 fx = 2x2 + 6x + -36f Reorder the terms: fx = -36f + 6x + 2x2 Solving fx = -36f + 6x + 2x2 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '36f' to each side of the equation. 36f + fx = -36f + 6x + 36f + 2x2 Reorder the terms: 36f + fx = -36f + 36f + 6x + 2x2 Combine like terms: -36f + 36f = 0 36f + fx = 0 + 6x + 2x2 36f + fx = 6x + 2x2 Reorder the terms: 36f + fx + -6x + -2x2 = 6x + -6x + 2x2 + -2x2 Combine like terms: 6x + -6x = 0 36f + fx + -6x + -2x2 = 0 + 2x2 + -2x2 36f + fx + -6x + -2x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 36f + fx + -6x + -2x2 = 0 The solution to this equation could not be determined.
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