2. To evaluate monomials with integral exponentsFrameworks: 10.P.1, 10.P.7

3. What is 50? 53 = 53-3 = 50 = 1 53 A zero exponent evaluates to 1

4. Zero Exponent For each nonzero real number b, b0 = 1 (00 is undefined.)

5. Try some: (x ≠ 0) 4x0 (5x)0 xy0 (7x6)0

6. What about a2/a5? a * a a * a * a * a * a = 1/(a * a * a) = a-3 1 = 1 x-3 = 1 x3 = x3

7. Negative Exponent For each nonzero real number b and for each positive integer n, b-n= 1 and 1 = bn bn b-n

8. Try some: 35* 3-8 (ab-7)(-b-3) Evaluate 3x-4 for x = -2

9. Simplify using only positive exponents: (x-8y-5)(x10y-2)

10. Simplify using only positive exponents: 3x-5 7y-2

11. Turn to page 212 Do 1-14