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(3⁻⁶ * 3² *9⁴)/(2⁻⁶ * 2² * 8³)=(3⁻⁴*3⁸)/(2⁻⁴ * 2⁹)=3⁴/2⁵=81/32
d)
10⁴* (5/4)³ /5⁵=(2⁴*5⁴ * 5³) : (2⁶ * 5⁵)=5² : 2²=2,5²=6,25
e)
2⁻⁵ * 2² * (2³)³=2⁻³ * 2⁹=2⁶=64
f)
3⁴ *27 * (3⁶)⁻²=3⁴ * 3³ *3⁻³ = 3⁴ = 81