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Question
Simplify, giving Solution with positive index
(- y2) (- y3)
Solution
(- y2) (- y3)
= (- 1 × y)2 . (- 1 × y)3
= (-1)2 . y2 . (-1). × y3
= 12+3 . y2+3
= 15y5 = y5
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