Question

2

f(x)=2x -3x


g(x)=-5x-1

find f(-5) and g(5)
simplify your answer as much as possible

Answer 1

`f(x)=2x-3x` and
`g(x)=-5x-1`

For
`f(x)=2x-3x` :

`x=-5`

`f(-5)=2x-3x\\f(-5)=2(-5)-3(-5)\\f(-5)=-10+15\\f(-5)=5`

For
`g(x)=-5x-1`:

`x=5`

`g(5)=-5x-1\\g(5)=-5(5)-1\\g(5)=-25-1\\g(5)=-26`

Answer 2

Explanation:

f(-5)=-10+15=5

g(5)=25-1=24