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
-
-
Ok, I've reported it. Thanks for the link.
-
Thanks for helping us improve our mobile experience!
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
