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anonymous
 one year ago
Let f(x) = 3x2 – x + 2 and g(x) = 5x2 – 1. Find f(g(x)). Show each step of your work.
anonymous
 one year ago
Let f(x) = 3x2 – x + 2 and g(x) = 5x2 – 1. Find f(g(x)). Show each step of your work.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you plug in g(x) in x2 and x?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1you get f(g(x)) by replacing each x is f(x) by g(x)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok I have my work on my paper could you do it too so I can compare and see If I did it right?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.13(5x^2  1)^2  (5x^1  1) + 2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1what do you get for the next line?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.075x^435x^21+2 that's what I get after I deal wit the parenthesis. Not sure if its correct though.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1no you deal with the (5x^2  1)^2 first this is a binomial = (5x^2  1)(5x^1  1) first you multiply th e second parentheses vy the 5 x^2 then by the 1 so its 25x^"  5x^2  5x^2 + 1 = 25x^2  10x^2 + 1

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1oh 'im making a lot of typos  its 3(25x^4  10x^2 + 1)  (5x^2  1) + 2 now be careful with  (5x^2  1) because you have to distribute the negative over the 5^2  1 and the 1 becomes + 1: = 75x^4  30 x^2 + 3  5x^2 + 1 + 2 = 75x^4  35x^3 + 6

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Is that just the first part of the equation or is that the answer after you combine like terms and stuff

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1 thats another typo!! its 35x^2 of course

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh I see what you did I multiplied wrong lol thanks for the help !

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1I'm really tired so i'd better call it a day on OS today.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1when multiplying binomials its like this dw:1437423013917:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ya foil I just didn't do it for some reason too im tired aswell lol
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