Question

1)fatore e simplifique

a)
$\sqrt{12}$
b)
$\sqrt{18}$
c)
$\sqrt{63}$
d)
$\sqrt{80}$
e)
$\sqrt{54}$

Answer 1

a) √12 => 12/2 = 6
 = 6/2 = 3 
√12 = √4x3 = 2√3

b) √18 => 18/2 = 9
=> 9/3 = 3
=> 3/3 = 1 
√18 = √3².2 = 3√2

c)√63 => 63/3 = 21
21/3 = 7
7/7 = 1
√63 = √3².7 = 3√7


d)√80 => 80/2 = 40 
40/2 = 20
20/2 = 10
10/2 = 5
 5/5 = 1
√80 = √2².2².5 = 4√5

e)√54 = 54/2 = 27
27/3 = 9
9/3 = 3
3/3 = 1 
√54 ≡ √3².3.2 = 3√3.2 = 3√6