(-4)^3*(5)^-3*(-5)^-3
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(-4)³=-64
5^-3 = 1/5³=1/125
(-5)^-3=-1/5³=-1/125
Hence,(-4)³×(5)^-3×(-5)^-3
=64×1×1 / 125 × 125
=64 / 15625
5^-3 = 1/5³=1/125
(-5)^-3=-1/5³=-1/125
Hence,(-4)³×(5)^-3×(-5)^-3
=64×1×1 / 125 × 125
=64 / 15625
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