Question

1.Rezolvati urmatoarele exerciti:
$a) [5 ^{7} x (-5^{6} : (-5^{12} ] ^{10} [(-5 ^{2} ] ^{3} - (-5) ^{2}$
b)$9 ^{12} x (-3^{8} : [(-9^{3})^{2} x 81] ^{2} :[(-5^{3}+ 2^{2} )^{5} ]^{0}$
As dori rezolvari complete....
Multumesc!

Answer 1

[5⁷×(-5)⁶:(-5)¹²]¹⁰[(-5)²]³-(-5)²=
=(5⁷×5⁶:5¹²)¹⁰×5⁶-5²=
=(5¹³:5¹²)¹⁰×5⁶-5²=
=(5¹)¹⁰×5⁶-5²=
=5¹⁰×5⁶-5²=
=5¹⁶-5²=5¹⁴

9¹²×(-3)⁸ :[(-9³)²×81]² :[(-5³+2²)⁵]⁰=
=3²⁴×3⁸ :[3⁶×3⁴]² :1=
=3³² :3²⁰=
=3¹²