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The form of your answer should either be p(x)p(x) or p(x)+kx3p(x)+\frac{k}{x-3} where p(x)p(x) is a polynomial and kk is an integer. 4x314x27x4x4\frac{4x^3-14x^2-7x-4}{x-4}

Full solution

Q. The form of your answer should either be p(x)p(x) or p(x)+kx3p(x)+\frac{k}{x-3} where p(x)p(x) is a polynomial and kk is an integer. 4x314x27x4x4\frac{4x^3-14x^2-7x-4}{x-4}
  1. Identify Problem Type: Identify the type of problem and the method to solve it. We need to simplify the rational expression by performing polynomial long division.
  2. Set Up Division: Set up the division of (4x314x27x4)(4x^3 - 14x^2 - 7x - 4) by (x4)(x - 4). Start dividing the highest degree terms: Divide 4x34x^3 by xx to get 4x24x^2.
  3. Multiply and Subtract: Multiply 4x24x^2 by (x4)(x - 4) and subtract from the original polynomial.\newline4x2×(x4)=4x316x24x^2 \times (x - 4) = 4x^3 - 16x^2\newline(4x314x27x4)(4x316x2)=2x27x4(4x^3 - 14x^2 - 7x - 4) - (4x^3 - 16x^2) = 2x^2 - 7x - 4
  4. Divide New Term: Divide the new term 2x22x^2 by xx to get 2x2x. Multiply 2x2x by (x4)(x - 4) and subtract from the current polynomial. 2x(x4)=2x28x2x * (x - 4) = 2x^2 - 8x (2x27x4)(2x28x)=x4(2x^2 - 7x - 4) - (2x^2 - 8x) = x - 4
  5. Divide xx: Divide xx by xx to get 11.\newlineMultiply 11 by (x4)(x - 4) and subtract from the current polynomial.\newline1×(x4)=x41 \times (x - 4) = x - 4\newline(x4)(x4)=0(x - 4) - (x - 4) = 0

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