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**Can someone please workout: If(x)=3x^2-x+2, find**

a) f(a+1)

b) 2f

(a)

**Answer**

[tex]f(x)=3x^2-x+2\\\\a)\ put\ x=a+1\\f(a+1)=3(a+1)^2-(a+1)+2=3(a^2+2a+1)-a-1+2\\=3a^2+6a+3-a+1=3a^2+5a+4\\\\\\b)\ put\ x=a\\2f(a)=2\left(3a^2-a+2

ight)=6a^2-2a+4[/tex]

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##### Virtual Teaching Assistant: John B.

##### Question Level: Basic

##### Karma: Free

##### Upload Date: 5/31/2017

This 11 words question was answered by John B. on StudySoup on 5/31/2017. The question contains content related to Math Since its upload, it has received 214 views.