Anyone knows this ?
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(-2)^5 ×(5)^-2 ×(5/2)^2
= (-2)^5 × 1 × (5) ^2
(5)^2 (2)^2
= (-2)×(2)^2 ×(2)^2
(2)^2
=(-2)×(2)^2
=-8
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