47.9k views
0 votes
Write each of the following in q(x)+ r/x-a . The polynomial q(x) will now be a quadratic. (a) (x^3+7x^2+17x+41)/x+5 (b) (2x^3-11x^2+22x-25)/x-3

1 Answer

0 votes

Final answer:

The question involves using polynomial long division to divide the given polynomials by the linear factors \(x+5\) and \(x-3\) to express them in the form \(q(x) + \frac{r}{x-a}\), where \(q(x)\) is a quadratic polynomial.

Step-by-step explanation:

To answer the question, we will use polynomial long division to divide each polynomial by the corresponding linear factor, x-a.

(a)

Dividing \(x^3+7x^2+17x+41\) by \(x+5\), we get:

  • Divide \(x^3\) by \(x\) to get \(x^2\).
  • Multiply \(x+5\) by \(x^2\) and subtract the result from the original polynomial.
  • Repeat the process for the resulting polynomial until you have a remainder that is a constant or a linear term.

(b)

Dividing \(2x^3-11x^2+22x-25\) by \(x-3\), we follow a similar process:

  • Divide \(2x^3\) by \(x\) to get \(2x^2\).
  • Multiply \(x-3\) by \(2x^2\) and subtract the result from the original polynomial.
  • Continue dividing until you are left with a remainder that is of lesser degree than the divisor.

The result will be in the form of \(q(x) + \frac{r}{x-a}\) with \(q(x)\) being a quadratic polynomial.

User Saurabh Sonawane
by
8.4k points