anonymous
  • anonymous
If f(x) = 5x − 1 and g(x) = 2x2 + 1, what is the value of (f × g)(-3)?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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SolomonZelman
  • SolomonZelman
your g(x)=2x²+1, correct?
anonymous
  • anonymous
yes?
SolomonZelman
  • SolomonZelman
So, when you say `(f × g)` all that means is that you multiply whatever `f(x)` is equal to, TIMES whatever `g(x)` is equal to. In this case `f(x)=5x-1` and `g(x)=2x²+1` So in this case, `(f×g)` means `(5x-1)•(2x²+1)`

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SolomonZelman
  • SolomonZelman
This will give you a new function (f×g)(x)= (whatever you got from this product of the 2 functions) But it is not done yet
SolomonZelman
  • SolomonZelman
Then, after you get the correct product of the two functions you need to plug in -3 instead of x.
SolomonZelman
  • SolomonZelman
and after this you are done
SolomonZelman
  • SolomonZelman
If you got any questions or want to check answer, you are always welcome to ask/check.
anonymous
  • anonymous
Thank you very much! I kept messing up with one of the functions :D
SolomonZelman
  • SolomonZelman
It's alright.... I would prefer you to show the work in here, so if anything, then I c an correct you. (But it is just a matter of preference , not requirement)

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