Question: How do I change the answer by changing the variable?

I have a variable x, and trying to get an output of E00. Here is what I have :

with(LinearAlgebra):
x:=2:
g:=Matrix([[3ξ+5x,8x-7ξ,2ξ],[ξ,4ξ+9x,7ξ].[5ξ,ξ,4x-6ξ]]):
h:=RandomMatrix(3):
p:=g.h:
E00:=(map(int,p,ξ=1..3))

I would like to change x to 2,4,6,8,16 and have different output of E00 and later on plot a graph. I have been trying to run them seperately. Is there a way for me to key in the inputs of x at one go? Please help. Thank you very much.

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