Question

determine as raizes das seguintes funções (ajuda!!!) (se puderem responder o 3, eu agradeço)

Answer 1

Explicação passo-a-passo:

a) f(x) = 12x -4

0 = 12x - 4

4 = 12x

4/12= x

x = 4/12

x= 1/3

b) f (x)= 14x +28

0 = 14x +28

-28 = 14x

-28/14= x

x = - 2

3) f(1) = 1-2/1-3

f(1) = - 1/-2

f(1)= +1/2

f(0)= 0-2/0-3

f(0)= -2/-3

f(0)= +2/3

f(-1)= -1 -2/ - 1 - 3

f(-1)= -3/-4

f(-1)= +3/4

f(-2)= -2-2/-2-3

f(-2)= -4/-5

f(-2)= +4/5

f(1) + f(0)/f(-1) - f(-2)

1/2 + 2/3 ÷ 3/4 - (+4/5)=

3 + 2

_____ ÷ 3/4 - 4/5=

6

5/6 ÷ 15 - 16

_____ =

20

5/6 ÷ (-1/20)=

5/6 × (- 20/1)=

- 100/6=

- 50/3