Question

Quanto vale o X

a) x 2 = 4

b) x 2 = 25

c) x 2 = 81

d) x 2 = 64​

Answer 1

Resposta:

a)x2 = 4

x=4÷2

x = 2

b)x2 = 25

x = 25÷2

x = 12,5

c) x2 = 81

x = 81÷2

x = 40,5

d) x2 = 64

x = 62÷2

x = 31