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Practice
Simplify the expressions below.a) r18 · r9
r27
r27
b) x-2 · x-4
x-6
x-6
c) w13 · w-14
w-1
w-1
d) y-15 · y-2
y-17
y-17
e) y11 · y4
y15
y15
f) m15 · m-7
m8
m8
g) y9 · y9
y18
y18
h) w16 · w-1
w15
w15
i) r11 · r-16
r-5
r-5
j) x2 · x13
x15
x15