Key Concepts Sect 7.2
Guided Practice Sect 7.2
Ex 1: Multiply. Simplify if possible
a.) √3 √12 b.) ∛-16 ∛4 c.) √-4 √16
Ex 2: Simplify each expression. Assume all variables are positive
b.)∛54n8
a.) √50x5
Guided Practice Sect 7.2
Ex 3: Multiply and simplify ∛25xy8 ∛5x4y3. Assume all variables are positive.
Ex 4: Divide and simplify. Assume all variables are positive.
a.) ∛­81
b.)∛192x8
∛3
∛3x
Ex 5: Rationalize the denominator of each expression. Assume all variables are positive. a.)√3
b.)√x5
c.) ∛5
2
√5
√3x y
∛4y
Ex 6: The distance d in meters that an object will fall in t seconds is given by d=4.9t2. Express t in terms of d and rationalize the denominator.
Homework
Sect 7.2: p.377 2, 5, 6­24 every 3rd, 26, 27­33 every 3rd, 35, 39­54 every 3rd, 55, 56, 58