Răspuns:
1.
a)2¹⁹•2²¹=2¹⁹+²¹=2⁴⁰
b)12²¹•12³¹=12²¹+³¹=12⁵²
c)2³•2⁸=2³+⁸=2¹¹
e)5ו5×+¹=
f)3⁴⁸•3⁷•3⁵=3⁴⁸+⁷+⁵=3⁶⁰
g)7⁵•7⁶•7⁷=7⁵•(7⁵-⁵•7⁶-⁵•7⁷-⁵=7⁵•(7⁰•7¹•7²)=
=7⁵•(1•7•49)=7⁵•343=16807•343=5764801
i)3²•3³•3⁷=3²+³+⁷=3¹²
j)23³⁵+23²⁵=23³⁵+²⁵=23⁶⁰
k)3²⁰¹¹•3²⁰⁰⁸=3⁴⁰¹⁹
3.
a)(5⁴)⁶=5⁴•⁶=5³⁰
b)(7⁸)³=7⁸•³=7²⁴
c)(23¹)¹⁷=23¹•¹⁷=23¹⁷
e)[(3²)³]⁴=3²•³•⁴=3²⁴
f)[(8⁵)³]⁶=8⁵•³•⁶=8⁹⁰
g)[(13⁵)⁶]⁴=13⁵•⁶•⁴=13¹²⁰
Sper că te-am ajutat!!
