Question

Oblicz.

a) √7*3√7=

b) 3∛7*2(³√7)²=

c) 5(∛-6)²*4∛-6=

Answer 1

a)√7·3√7=3√49=3·7=21

b)3∛7 ·2 (∛7)²=3∛7 ·2∛49=6∛343=6·7=42

c)5(∛-6)² ·4 ∛-6 =5∛36 ·4∛-6=20∛-216=20·(-6)=-120

Answer 2

a) 21

b)42

c)120