Example

Finding the Quotient of Polynomial Functions (x25x24)÷(x+3)(x^2 - 5x - 24) \div (x + 3) and Evaluating at x=3x = -3

To find the quotient function and evaluate it for the functions f(x)=x25x24f(x) = x^2 - 5x - 24 and g(x)=x+3g(x) = x + 3: Step 1 — Find (f/g)(x)(f/g)(x). Apply the division definition: (f/g)(x)=f(x)g(x)(f/g)(x) = \frac{f(x)}{g(x)}. Substitute the expressions to get x25x24x+3\frac{x^2 - 5x - 24}{x + 3}. Perform the polynomial division to divide the numerator by the denominator. The result is x8x - 8. Therefore, (f/g)(x)=x8(f/g)(x) = x - 8. Step 2 — Evaluate (f/g)(3)(f/g)(-3). Substitute 3-3 into the resulting quotient function: (f/g)(3)=(3)8=11(f/g)(-3) = (-3) - 8 = -11.

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Updated 2026-04-29

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