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= (-4²x^-3(2) . y^2(2) ] / [2²p^2(2) . q^3(2)]
= 16x^-6y⁴ / 4 p⁴q^6
= (16/4). x^(-6-4) .y^(4-6)
= 4 . x^-10 . y^-2
= 4 / x^10 y²
2.
a. (6³ per 2²)⁴
6^3(4) / 2^2(4)
= 6^12 / 2^8
= 3^8 x 6^4
b. (2p²q³)² × (-3pq²)²
(2²p⁴q^6) x (-3²p²q⁴)
-36p^6q^10