Trying to answer question on mastery challenge but no way to say (x+1)^2 using android because your keypad doesn't offer parentheses and phone keypad is overridden. @khanacademy
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Replying to @donniedavid
Hi Julia, thanks for the feedback! Could you submit this to our help desk so we can look into fixing it? http://khan.co/KA-support
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Replying to @donniedavid
Thanks for helping us improve our mobile experience!
8:55 AM - 21 Mar 2018
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