Q. Divide the polynomials. Your answer should be in the form p(x)+x−1k where p is a polynomial and k is an integer.x−1x2+2=
Set up division: Set up the division of the polynomials in long division format.We are dividing x2+2 by x−1. We write this as (x2+0x+2)÷(x−1) to make sure we account for all terms.
Divide first term: Divide the first term of the dividend by the first term of the divisor.We divide x2 by x to get x. This will be the first term of the quotient polynomial p(x).
Multiply and subtract: Multiply the divisor by the term obtained in Step 2 and subtract from the dividend.We multiply (x−1) by x to get (x2−x). We then subtract this from x2+0x+2.(x2+0x+2)−(x2−x)=x2+0x+2−x2+x=x+2.
Bring down next term: Bring down the next term of the dividend, if any, and repeat the division process.Since there are no more terms to bring down, we proceed with x+2 as our new dividend.
Divide obtained term: Divide the term obtained after subtraction by the first term of the divisor.We divide x by x to get 1. This will be the next term of the quotient polynomial p(x).
Multiply and subtract: Multiply the divisor by the term obtained in Step 5 and subtract from the new dividend.We multiply (x−1) by 1 to get (x−1). We then subtract this from x+2.(x+2)−(x−1)=x+2−x+1=3.
Find remainder: Since we cannot divide 3 by x−1 anymore, 3 is the remainder of the division.The remainder 3 cannot be divided further by x−1, so we express it as a fraction over the divisor.
Write final answer: Write the final answer in the form p(x)+x−1k. The quotient polynomial p(x) is x+1 and the remainder is 3, so the final answer is x+1+x−13.