Question

sCOATETI FFACTORI DE SUB RADICAL
$\sqrt{72}$
b)$\sqrt{48}$
c)$\sqrt{75}$
d)$\sqrt{90}$
e)$\frac{ \sqrt{54} }{3}$

Answer 1

√72=6√2
√48=4√3
√75=5√3
√90=3√10
√54/3=3√6/3=√6
ca sa scoti de sub radical descompui fiecare numar in factori primi si apoi scoti de sub radical
72=2.2.2.3.3=2.(2.2)(3.3)
√72=2.3√2=6√2