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Practice
Simplify the expressions below.a) -17r-11 · 20r18
-340r7
-340r7
b) 9q-12 · 19q-12
171q-24
171q-24
c) -20r16 · 4r-6
-80r10
-80r10
d) 17x17 · 10x10
170x27
170x27
e) 12y17 · 5y-13
60y4
60y4
f) 10w-7 · 9w-12
90w-19
90w-19
g) -12y-9 · 12y-16
-144y-25
-144y-25
h) -20x20 · 10x14
-200x34
-200x34
i) -7y-13 · 8y9
-56y-4
-56y-4
j) 19x17 · 12x-3
228x14
228x14