Homework Help: algebra

Posted by scatterbrain on Friday, September 11, 2009 at 6:39pm.

find the indicated outputs for f(x)=3x^2-5x

I get

f(0)=0
f(-1) = 1
f(2) =8)
am I doing this right if not could you explain where I am wrong.

algebra - bobpursley, Friday, September 11, 2009 at 6:40pm
yes, no ...3(-1)62-5(-1)=3+5=2
and finally, no. Rework that. What is 3*4-10?
algebra - scatterbrain, Friday, September 11, 2009 at 6:42pm
This would be 2 but how can f(2)=2
algebra - bobpursley, Friday, September 11, 2009 at 6:56pm
yes, f(2)=2. 3*2^2-5*2=12-10=2

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