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Please help with my math
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2 votes
Please help with my math

Please help with my math-example-1
User Pixel Perfect
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1 Answer

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

User Flyersun
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