Question

Exercițiul 15 va rog

Answer 1

a) $\sqrt{14^2} =14$
$\sqrt{23^4} =23^2=529$
$\sqrt{(-35)^2} =(-35)=-35$
$\sqrt{3^6} =3^3=27$
$\sqrt{(-7)^4}=(-7)^2=49$
$\sqrt{a^2}=a$
$\sqrt{a^4}=a^2$
$\sqrt{(-a)^8}= (-a)^4=a^4$

b) $\sqrt{2^4*3^2}= 2^2*3=4*3=12$
$\sqrt{16^2*5^2} =16*5=80$
$\sqrt{2^2*3^2*5^2}=2*3*5=30$
$\sqrt{2^6*5^2*3^4} =2^3*5*3^2=8*5*9=360$
$\sqrt{18^2*3^4*2^6} =18*3^2*2^3=18*9*8=1296$