{(7⁴)²-(8²)⁹×7⁴÷(5²)⁸}
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Step-by-step explanation:
7⁴ ÷ 7⁵ = 7475. = 7×7×7×77×7×7×7× ... 5². 6. (3)5(3)2. = 35−2 = 3³ 7. (−5)9(−5)6. = (-5)9− 6 = (-5)³ 8. (72)⁸ ÷ (72)⁵. = (72)8−5 = (72)³.
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