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OpenStudy (anonymous):
-2r(8r+5) 1 -16r^2+5 2 -16r^2+10 3 -16r^2-10r 4 -16r^2-10 I am thinking the second one. Correct me if I am wrong but comparing like terms would give me -2r*8r which is -16^r2 then 2*5 would give me the +10 or did I do something wrong?
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OpenStudy (mathstudent55):
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