Question

5O PONTOOOOOS
1 determine o valor da soma √32- 4√8 - √50 - 2√2=

2 resolva a potencia 2³

3 calcule √√√√x =

4 efetue √32 - 3√2 + √8 =

5 ) 3√8 . 6√2 é igual a ?

Answer 1

1)
√32- 4√8 - √50 - 2√2=  
4√2- 4.2√2- 5√2 - 2√2=
4√2 - 8√2 - 5√2 -2√2 =
(4-8-5-2)√2=
-11√2

2)
2³  = 2.2.2 = 8

3)√√√√x = ¹⁶√x

4)
√32 - 3√2 + √8 =
4√2 -3√2 + 2√2=
(4-3+2)√2=
3√2

5) 3√8 . 6√2= 18√(8.2) = 18√16 = 18.4 = 72

Answer 2

√32- 4√8 - √50 - 2√2=
√2⁴.2 - 4√2².2 - √5².2 -2√2 =
2.2√2 - 4.2√2 - 5√2 - 2√2=
4√2 - 8√2 - 5√2 - 2√2 =
√2(4 - 8 - 5 - 2) = -11√2

2. 2³ = 2.2.2 = 8

3. √√√√x = ²ˣ²ˣ²ˣ²√x = ¹⁶√x

4. √32 - 3√2 + √8 =
    √2.2.2.2.2 - 3√2 + √2.2.2 =
   √2².2².2 - 3√2 + √2².2 =
   2.2√2 - 3√2 + 2√2 =
   √2(4 - 3 + 2) = 3√2

5 ) 3√8 . 6√2 =
     3√2.2.2 . 6√2 =
     3√2².2   . 6√2 =
     3.2√2    . 6√2 =
       6√2    .  6√2 =
       36√2.2 =
       36√2² = 36.2 = 72