Question

alguem sabe fazendo favor?

Answer 1

1º)

a) √648 : √6

√648/6 = √108 = √2².3³ = 6√3


b) √76 . √12

√76 . 12 = √912 = √2⁴.57 = 4√57


c) √1875 : √3

√1875/3 = √625 = √25² = 25


d) ⁴√144 : ⁴√9

⁴√144 . 9 = ⁴√1296 = ⁴√2⁴.3⁴ = 6


e) ∛320 : ∛5 . ∛20

∛320/5 . ∛20 = ∛64 . ∛20 = 4 . ∛20 = 4∛20


f) √12 . √14 : √3

√12 . 14 : √3 = √168 : √3 = √168/3 = √56 = √2³.14 = 2√14



2º) √34 . √8 = 4√x

√34 . 8 = 4√x
√272 = 4√x
√x = (√272)/4
x = [(√272)/4]²
x = 272/16

x = 17