3 years ago

If c(x)=4x-2 and d(x)=x^2+5 , what is (c o d) (x)

1 answer:

3 0

Answer:

4x² + 18

Step-by-step explanation:

note that (c ○ d )(x) = c(d(x))

To evaluate substitute x = d(x) into c(x), that is

c(d(x))

= c(x² + 5)

= 4(x² + 5) - 2

= 4x² + 20 - 2

= 4x² + 18

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