Question

determine os zeros das seguintes funções
f(x)=2x+8
f(x)=-x+6
f(x)=x+3
f(x)=-4x-4​

Answer 1

f(x) = 2x + 8

2x + 8 = 0

2x = - 8

x = - 8/2

x = -4

f(x) = - x + 6

- x + 6 = 0

x = 6

f(x) = x + 3

x + 3 = 0

x = - 3

f(x) = - 4x - 4

- 4x - 4 = 0

4x = - 4

x = - 4/4

x = - 1

Answer 2

Resposta:

f(x)=2x+8  ==> 2x+8=0  ==>x=-8/2=-4

f(x)=-x+6 ==>-x+6=0 ==>-x=-6 ==>x=6

f(x)=x+3 ==> x+3=0  ==>x=-3

f(x)=-4x-4​   ==>-4x-4=0  ==> -4x=4  =+>x=-1