Question

Ajutati-ma va rog 2 la puterea 99 - 2 la puterea 98 rezolvare ! Cat mai urgent va rog !!

Answer 1

$2^{99}-2^{98}= 2^{98}\cdot (2-1) = 2^{98}$

Answer 2

2⁹⁹- 2⁹⁸=
2⁹⁸·(2¹-2⁰)=
2⁹⁸·(2-1)=
2⁹⁸·1=
2⁹⁸