Question

Calculează x³ daca:

A) x = 3√7-2√7=
B) x = 5√6-3√6=
C) x = 2√5+2√5=
D) x = -2√2-2√2

Rapid pls

Answer 1

A) x=√7(3-2)⇒x=√7⇒x³=√7³=7√7

B) x=√6(5-3)⇒x=2√6⇒x³=(2√6)³=2³√6³=8*6√6=48√6

C) x=4√5⇒x³=4³√5³=64*5√5=320√5

D) x=-4√2⇒x³=(-4)³√2³=-64*2√2=-128√2