Do Now: Evaluate each expression. 42 = (32)3 = 34 ∙ 33 = (-2)3 = 2 ∙ 52 =

8.2: Zero and Negative Exponents Objective: evaluate powers that have zero or negative exponents Homework: p452-453 #22-26, 30-34, 42-44, 52-56 evens

Properties of Zero & Negative Exponents Evaluate Definition x0 = x-n = 1

Evaluate each expression. 50 = 00 = (-2)0 =

Evaluate the expression. 2-2 = h (-9)-2 = A a

Evaluate the expression. 6-4 · 64 = (2-3)-2 = (-3 · 2)-2 = 42 · 4-3 = (3-1)-2 = (2 · 5)-2 =

Use a calculator to evaluate the expression. (2-2)4 = 7-3 = 6-2 · 6-1 = (33)-2 =

Rewrite the expression with positive exponents. 2x-2y-3 = 2x-3y3 = a = a (5a)-2 = (5c)-3 =