Question

Encontre o valor de x
a) 2x + 4= 0
b) 5x + 10=0
c) 0= -6x-12
e) x^2= 16
f) x^2= 64

Answer 1

a) x = 2
b) x = 2
c) x = -2
e) x = 4
f) x = 8

Explicação:

a) 2x + 4 = 0
2x = 4
x = 4/2
x=2

b) 5x + 10 = 0
5x = 10
x = 10/5
x = 2

c) 0= -6x - 12
6x = -12
x = -12/6
x = -2

e) x^2 = 16
x = √16
x = 4

f) x^2 = 64
x = √64
x = 8