Please help with my math

asked Apr 4, 2021 118k views

2 votes

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5 votes

Answer: 9x-20

Explanation:

The function is
f(x)=3x-5 , in order to obtain f(f(x)) you have to replace x in the function by the function itself:

f(f(x))=3(3x-5)-5=9x-15-5=9x-20

Flyersun answered Apr 7, 2021

7.0k points

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