Adding and subtracting polynomials
Ex. 2 Simplify each polynomial expression.
a) (−𝑥 2 − 3𝑥 + 4) + (2𝑥 2 + 2𝑥 + 5)
b) (4𝑥 2 − 2𝑥) − (2𝑥 2 + 2𝑥 + 5)
Multiplying monomials and polynomials
Ex. 3 Multiply
−2𝑎(−3𝑎2 − 11𝑎 + 20)
Ex. 4 Multiply
a) (3x + 4)(2x – 3)
b) (𝑥 2 + 1)(3𝑥 − 4)
Ex. 5 Multiply
a) (𝑥 2 + 4𝑥 + 16)(𝑥 − 4)
b) (2𝑥 2 − 4𝑥 + 5)(3𝑥 − 1)