In Exercises 15–32, multiply or divide as indicated. (x^2−4)/(x−2) ÷ (x+2)/(4x−8)

Identify each expression as a polynomial or not a polynomial. For each polynomial, give the degree and identify it as a monomial, binomial, trinomial, or none of these.See Example 1. (2/3)t^6+(3/t^5)+1

In Exercises 15–58, find each product. (x−1)(x+2)

In Exercises 15–32, multiply or divide as indicated. (x+5)/7 ÷ (4x+20)/9

In Exercises 15–58, find each product. (2x−5)(7x+2)

Add or subtract, as indicated. See Example 2. 3(8p^2-5p) - 5(3p^2-2p+4)

In Exercises 23–34, find each product using either a horizontal or a vertical format.(a−b)(a²+ab+b²)

Add or subtract, as indicated. See Example 2. -(8x^3+x-3) + (2x^3+x^2) - (4x^2+3x-1)

In Exercises 23–34, find each product using either a horizontal or a vertical format.(x²+2x−1)(x²+3x−4)