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3 years ago

6

If f(x)=2x+4 and g(x)=x-5, find (f-g)(x)

1 answer:

wariber [46]3 years ago

5 0

Answer:

[

f

o

g

]

(

x

)

=

2

x

2

−

1

Explanation:

f

(

x

)

=

2

x

+

5

,

g

(

x

)

=

x

2

−

3

then,

[

f

o

g

]

(

x

)

=

2

(

g

(

x

)

)

+

5

=

2

(

x

2

−

3

)

+

5

[

f

o

g

]

(

x

)

=

2

x

2

−

6

+

5

[

f

o

g

]

(

x

)

=

2

x

2

−

1

Step-by-step explanation:

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