Khan/khan-exercises — Issue #11971: Simplifying expressions with exponents - Simplify using exponents
Author: KhanBugz
Created: 2012-01-24 03:46:03+00:00
State: open
Labels: ipad, safari, wrong-or-unclear

Reporter: Chenshaw@bellbouth.net

i get same answer as solution and says I did it wrong

[simplifying_expressions_with_exponents.html?seed=152&problem=simplify-exponential-form-full](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_expressions_with_exponents.html?seed=152&problem=simplify-exponential-form-full&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/simplifying_expressions_with_exponents.html?seed=152&problem=simplify-exponential-form-full&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%2230%5C%22%2C%5C%22-9%5C%22%5D%22%2C171%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22-30%5C%22%2C%5C%22-9%5C%22%5D%22%2C42%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22-30%5C%22%2C%5C%22--15%5C%22%5D%22%2C130%5D%2C%5B%22hint-activity%22%2C%220%22%2C49%5D%2C%5B%22hint-activity%22%2C%220%22%2C51%5D%2C%5B%22hint-activity%22%2C%220%22%2C57%5D%2C%5B%22hint-activity%22%2C%220%22%2C67%5D%2C%5B%22hint-activity%22%2C%220%22%2C87%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22-30%5C%22%2C%5C%22---15%5C%22%5D%22%2C122%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22-30%5C%22%2C%5C%22---15%5C%22%5D%22%2C21%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22-30%5C%22%2C%5C%22---15%5C%22%5D%22%2C38%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22--30%5C%22%2C%5C%22---15%5C%22%5D%22%2C35%5D%5D)

[["30","-9"],["-30","-9"],["-30","--15"],["-30","---15"],["-30","---15"],["-30","---15"],["--30","---15"]]

Mozilla/5.0 (iPad; CPU OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3

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