Question

Calcule os valores de x​

Answer 1

Resposta:

c) x2 -1=48

x 2. = 48+1

x 2= 49

x= raiz quadrada de 49

x=7

e)x2 + 1 =17

x2 =17-1

x= raiz quadrada de 16

x=4

b)x2+3=18

x2=19-3

x2=16

x= raiz quadrada de 16

x=4

d) 3x=75

x=75÷3

x=25