0. Review of Algebra

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

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

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

In Exercises 15–32, multiply or divide as indicated. (x^2+x)/(x^2−4) ÷ (x^2−1)/(x^2+5x+6)

In Exercises 15–58, find each product. (7x^2−2)(3x^2−5)

In Exercises 15–58, find each product. (7x^3+5)(x^2−2)

Find each product. See Examples 3–5. (5m-6)(3m+4)

In Exercises 15–32, multiply or divide as indicated. (x^2−4)/(x^2+3x−10) ÷ (x^2+5x+6)/(x^2+8x+15)

Find each product. See Examples 3–5. x^2(3x-2)(5x+1)

In Exercises 15–32, multiply or divide as indicated. (x^3−25x)/4x^2 ⋅ (2x^2−2)/(x^2−6x+5) ÷ (x^2+5x)/(7x+7)

Find each product. See Examples 3–5. 4x^2(3x63+2x^2-5x+1)

In Exercises 23–34, find each product using either a horizontal or a vertical format.(xy+2)(x²y²−2xy+4)

In Exercises 29–40, add the polynomials. Assume that all variable exponents represent whole numbers.(7x²y − 5xy) + (2x²y − xy)

In Exercises 33–68, add or subtract as indicated. (3x+2)/(3x+4) + (3x+6)/(3x+4)

In Exercises 29–40, add the polynomials. Assume that all variable exponents represent whole numbers.(5x²y + 9xy + 12) + (−3x²y + 6xy + 3)