Question

1) Calcule, os valores de x:
a) x2 = 49
b) x2-1 = 63
c) 4x2 = 16
d) x2 + 2 = 27​

Answer 1

Resposta:

Explicação passo-a-passo:

a) x2 = 49

x2=V49

X=7

b) x2-1 = 63

X2=63+1

X2=V64

X=8

c) 4x2 = 16

X2=16/4

X2=4

X2=V4

X=2

d) x2 + 2 = 27

X2=27-2

X2=V25

X=5