SOLUTION: I need help, I have no idea how to do this. f(x)=xroot2-6x+4, g(x)=-x-1 I need to find f+g, f-g, f.g and f/g Thank you, Janet dreamy2804@yahoo.com

Question 231174: I need help, I have no idea how to do this.
f(x)=xroot2-6x+4, g(x)=-x-1
I need to find f+g, f-g, f.g and f/g
Thank you,
Janet
dreamy2804@yahoo.com
Found 2 solutions by stanbon, user_dude2008:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I have no idea how to do this.
f(x)=xroot2-6x+4, g(x)=-x-1
I need to find f+g, f-g, f.g and f/g
----------
f+g = xsqrt(2)-6x+4 + -x-1 = (sqrt(2)-7)x+3
----------
f-g = xsqrt(2)-6x+4 -(-x-1)
f-g = (sqrt(2)-5)x + 5
-----------------------------
To get f*g multiply f and g
To get f/g divide
=======================
Cheers,
Stan H.
Answer by user_dude2008(1862) (Show Source): You can put this solution on YOUR website!

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_______-x-7_________ -x-1 | x^2-6x+4 x^2+x ------ -7x+4 -7x-7 ------ 11

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