Question

Quanto vale x ?
a) x2 = 9 --> x = b) x2 = 25 --> x =
c) x2 = 49 --> x = d) x2 = 81 --> x =

Answer 1

Olá,

a) x² = 9

x = √9

x = 3

b) x² = 25

x = √25

x = 5

c) x² = 49

x = √49

x = 7

d) x² = 81

x = √81

x = 9

Espero ter ajudado!!!