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b) x y
x
y
2
Negative Exponents:
1
Symbols: x m if x 0
x m
1 1
2
Example 8: a) 3 b) yx
1
3 yx 2
Example 9: Simplify each expression given below.
a 5 b
a)
a 3 b 4
x 4 y
b)
x 2 y 5
6 sr 3 5
c)
18r 7 s 5 t 2
5 ba 4 6
d)
25a 2 b 6 c 3
x 8 3 y 5
e)
10 x 3 y 5 z
3 bca 3 5
f)
27a 4 bc 2
48 091math-wb-w6-(equations&inequalities-1)