1. Warm-Up Add or subtract. 1) (5x2 + 4x + 2) + (-2x + 7 – 3x2)
2) (8rs – 2r2s3 – 5rs4) + (6r2s3 – 3r3s2 - 4rs)
3) (6x4 + 3x3 – 2x) – (3x4 – x3 + 4)
4) (7x3y2 – 4x2y + 5) – (2x2y + 3x3y2 – 4xy – 3)

2. Multiplication of Monomials and Binomials
Objectives:
To multiply a monomial and a polynomial

3. Example 1
Multiply.
3a(6b + 7)
= (3a)(6b)
+ (3a)(7)
= 18ab
+ 21a

4. Example 2 Multiply. 2x(3x2 + x + 4) = (2x)(3x2) + (2x)(x) + (2x)(4)

5. Practice Multiply. 1) 4x(2x + 4) 2) 3a2(-5a3 + 2a – 7)
3) 5s(8t4 – 4s2 – 9t – 11)