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6.) The expression 
(x^(3)+2x^(2)+x+6)/(x+2) is equivalent to
(1) 
x^(2)+3
(3) 
2x^(2)+x+6
(2) 
x^(2)+1+(4)/(x+2)
(4) 
2x^(2)+1+(4)/(x+2)

The expression x3+2x2+x+6x+2 \frac{x^{3}+2 x^{2}+x+6}{x+2} is equivalent to\newline(11) x2+3 x^{2}+3 \newline(33) 2x2+x+6 2 x^{2}+x+6 \newline(22) x2+1+4x+2 x^{2}+1+\frac{4}{x+2} \newline(44) 2x2+1+4x+2 2 x^{2}+1+\frac{4}{x+2}

Full solution

Q. The expression x3+2x2+x+6x+2 \frac{x^{3}+2 x^{2}+x+6}{x+2} is equivalent to\newline(11) x2+3 x^{2}+3 \newline(33) 2x2+x+6 2 x^{2}+x+6 \newline(22) x2+1+4x+2 x^{2}+1+\frac{4}{x+2} \newline(44) 2x2+1+4x+2 2 x^{2}+1+\frac{4}{x+2}
  1. Perform Division: Perform polynomial long division or synthetic division to simplify the expression.\newlineWe will divide the polynomial x3+2x2+x+6x^3 + 2x^2 + x + 6 by x+2x + 2.
  2. Set Up: Set up the division.\newlineWrite x3+2x2+x+6x^3 + 2x^2 + x + 6 under the division bar and x+2x + 2 outside the division bar.
  3. Divide First Term: Divide the first term of the dividend by the first term of the divisor.Divide x3 by x to get x2.\text{Divide } x^3 \text{ by } x \text{ to get } x^2.Write x2 above the division bar.\text{Write } x^2 \text{ above the division bar.}
  4. Multiply and Subtract: Multiply the divisor by the result from the previous step.\newlineMultiply x+2x + 2 by x2x^2 to get x3+2x2x^3 + 2x^2.\newlineWrite this result under the corresponding terms of the dividend.
  5. Repeat Division: Subtract the result from the previous step from the dividend.\newlineSubtract (x3+2x2)(x^3 + 2x^2) from (x3+2x2)(x^3 + 2x^2) to get 00.\newlineBring down the next term of the dividend, which is xx.
  6. Divide Next Term: Repeat the division process with the new dividend.\newlineDivide xx by xx to get 11.\newlineWrite 11 above the division bar next to x2x^2.
  7. Multiply and Subtract: Multiply the divisor by the result from the previous step.\newlineMultiply x+2x + 2 by 11 to get x+2x + 2.\newlineWrite this result under the corresponding terms of the new dividend.
  8. Repeat Division: Subtract the result from the previous step from the new dividend. Subtract (x+2)(x + 2) from (x)(x) to get 2-2. Bring down the next term of the dividend, which is 66.
  9. Add Final Term: Repeat the division process with the new dividend.\newlineDivide 2-2 by xx to get 00, since 2-2 cannot be divided by xx to give a polynomial term.\newlineWrite 00 above the division bar next to 11.
  10. Write Final Result: Add the final term of the dividend to the remainder.\newlineThe remainder is now 2+6-2 + 6, which simplifies to 44.
  11. Match with Options: Write the final result of the division.\newlineThe quotient is x2+1x^2 + 1, and the remainder is 44.\newlineThe expression can be written as x2+1+4x+2x^2 + 1 + \frac{4}{x + 2}.
  12. Match with Options: Write the final result of the division.\newlineThe quotient is x2+1x^2 + 1, and the remainder is 44.\newlineThe expression can be written as x2+1+4x+2x^2 + 1 + \frac{4}{x + 2}.Match the result with the given options.\newlineThe equivalent expression is x2+1+4x+2x^2 + 1 + \frac{4}{x + 2}, which corresponds to option (2)(2).

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