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Ответ:

1) 5.6 * 10⁶ = 5600000

6.5 * 10⁴ = 65000

5600000 больше 65000

2) a) 4⁹ * 4⁸=4¹⁷=17179869184

б) y¹⁵ / y¹⁰ = y⁵

в)(b)⁶=b¹⁸

г)(ab)=a⁸b⁸

д)(6/7)²=(6²/7²)=36/49