SOLUTION: Given f(x)=2x-1 and g(x)= -1-2x determine the value of (fg)(-2) determine the value of (g and f)(-2)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Given f(x)=2x-1 and g(x)= -1-2x determine the value of (fg)(-2) determine the value of (g and f)(-2)      Log On


   

Question 131047: Given f(x)=2x-1 and g(x)= -1-2x
determine the value of (fg)(-2)

determine the value of (g and f)(-2)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Given f(x)=2x-1 and g(x)= -1-2x
determine the value of (fg)(-2) = f[g(-2)]=f[-1-2*-2]=f[3]=2*3-1=5
determine the value of (g and f)(-2)
Comment: I don't know what you mean by "g and f"
Do you mean addition whitch is (g+f)x ?
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Cheers,
Stan H.