Question

Sendo f(x)=3x-10 calcule o valor de X.

a) f(x) = 0

b) f(x) = 20

c) f(x) = -20
PFV ♥

Answer 1

Resposta:

a) f(x)=0

f(x)=3x-10=0

3x=10

x=10/3

b) f(x)=20

f(x)=3x-10=20

3x=30

x=10

c) f(x0= -20

f(x)=3x-10= -20

3x= -10

x= -10/3