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Mathematics 8 Online
OpenStudy (anonymous):

Two identity problems

OpenStudy (anonymous):

OpenStudy (anonymous):

Is 9 a and.. is 10 d?

OpenStudy (tkhunny):

You'll have to prove them or disprove them. A simple method to rule things out is to try something, maybe 0. If it doesn't work, you are done with that one.

OpenStudy (anonymous):

I like the tip that @tkhunny gave for speed. I'm guessing that you worked on these already @Exvikki, because I got the same answers.

OpenStudy (anonymous):

9 is a

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