Question

F(x)=-2x+4
F(x)=8x-1

Answer 1

Oi...

a)

f(x) = - 2x + 4

f(x) = 0

- 2x + 4 = 0

- 2x = - 4 ( - 1)

2x = 4

x = 4/2

x = 2

b)

f(x) = 8x - 1

f(x) = 0

8x - 1 = 0

8x = 1

x = 1/8

Bons estudos.