Division of Polynomials
Division of polynomials involves dividing one polynomial (the dividend) by another polynomial (the divisor) to obtain a quotient and sometimes a remainder. The process is similar to long division with numbers but uses algebraic expressions.
Steps for Dividing Polynomials
- Divide the First Term: Divide the leading term of the dividend by the leading term of the divisor.
- Multiply and Subtract: Multiply the entire divisor by the result from step 1 and subtract this product from the dividend.
- Repeat: Repeat the process with the new polynomial (the remainder) until the degree of the remainder is less than the degree of the divisor.
- Write the Result: The result consists of the quotient and, if applicable, the remainder.
Example 1: Dividing a Polynomial by a Monomial
Problem: \( \frac{6x^3 + 9x^2 - 12x}{3x} \)
Solution:
Example 2: Long Division of Polynomials
Problem: \( \frac{x^3 - 2x^2 + 3x - 5}{x - 1} \)
Solution: