lani34
lani34
13-11-2017
Mathematics
contestada
what is the expression
Respuesta :
gmany
gmany
04-07-2018
[tex]-9r^2-2r+r^2+r=(-9r^2+r^2)+(-2r+r)=-8r^2-r\to B.[/tex]
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Please help me! I'm not just looking for answers, I'm honestly confused.
