Respuesta :

Anamfatema

Answer:

Explicație pas cu pas:

5.

(2√20 - 3√45) : 5√5 = 2√20 : 5√5 - 3√45 : 5√5

= 2√4/5 - 3√9/5 = 4/5 - 9/5 = -5/5 = -1

_____________________

6.

a = 2√24 = 2*2√6 = 4√6

b = 9√6

a*b = 4√6*9√6 = 4*9*6

Mg = √a*b = √4*9*6 = 2*3√6 = 6√6

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