Question

1]Efetue
A] 3√5 + √5 - √5 B] 4√63 - √7

C]√12 + √75 - 3√108 D]√25 + ∛27 +⁴√81

Answer 1

a)3raiz5

b)4.3raiz7-raiz7=
12raiz7-raiz7=
11raiz7

c)2raiz3+5raiz3-3.(2.3)raiz3=
7raiz3-3.(6)raiz3=
7-18raiz3=
-11raiz3

d)5+3+3=
8+3=
11