Areodactl Areodactl

17-12-2018
Mathematics

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Evaluate f(3) x(5x-9)

I think I have the answer just now sure thanks if you can help

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sqdancefan sqdancefan

17-12-2018

Answer:

18

Step-by-step explanation:

Put 3 where x is, then do the arithmetic.

... f(x) = x(5x -9)

... f(3) = 3(5·3 -9) = 3(15 -9) = 3·6

... f(3) = 18

_____

Your calculator can do this, too.

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