Simple calculation of product's power 1.8^3×（1/4)^4 2.(-1/8)^3×2^9

1.8^3×（1/4)^4
=8^3×(1/4)^3×(1/4)
=(8×1/4)^3×1/4
=2^3×1/4
=8×1/4
=2
2.(-1/8)^3×2^9
=(-1/8)^3×2^(3×3)
=(-1/8)^3×(2^3)^3
=(-1/8)^3×8^3
=(-1/8×8)^3
=(-1)^3
=-1

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