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

User JDOaktown
by
5.9k points

1 Answer

6 votes

Answer:

[

f

o

g

]

(

x

)

=

2

x

2

−

1

Step-by-step 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:

User Tim Molendijk
by
6.1k points
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