anonymous
  • anonymous
Let f(x) = 3x^2 + 3x − 8. Find and simplify the following. f(a) + f(2)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Okay, so for this one you'd plug in a everywhere you see x which would give you 3a^2+3a-8 and then 2 for everywhere you see x which would give you 3(2)^2+3(2)-8. So you'd end up having 3a^2+3a-8+12+6-8
anonymous
  • anonymous
i have no clue about that. have u also tried googling it?
anonymous
  • anonymous
And you just simplify from there! Giving you: 3a^2+3a+2 (because (-8+-8)=-16 and (12+6)=18 so, 18-16=2) Then you just "bust the b" which i can draw for you

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anonymous
  • anonymous
ah okay thank you!!
anonymous
  • anonymous
Actually, I just tried it, and I think that is the simplified form!
anonymous
  • anonymous
yep your right

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