Question

Determine o valor de x:
x= √21+√13+√7+√4
Alguém me ajuda por favor

Answer 1

x= √21+√13+√7+√4 
x= √21+√13+√7+2
x=√21+√13+√9 
x=√21+√13+3 
x=√21+√16
x=√21+4
x=√25
x=5 

Answer 2

Resposta:

x = √(21+√(13+√(7+√(4))))

x = √(21+√(13+√(7+√(4))))

x = √(21+√(13+√(7+2)))

x = √(21+√(13+√9))

x = √(21+√(13+3)

x = √(21+√16)

x = √(21+4)

x = √25

x = 5