Khan/khan-exercises — Issue #12088: Algebra challenge - No correct answer choice
Author: KhanBugz
Created: 2012-01-25 17:22:36+00:00
State: open
Labels: win7, wrong-or-unclear

Solve for x in
3√x−4=6√x+10

Subtract 6√x from both sides and add 4:
-3√x=14

Divide by -3:
√x=-14/3

Square both sides:
x=-14^2/3^2
x= 196/9

[algebra_challenge.html?seed=36&problem=58 (radical_equations)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/algebra_challenge.html?seed=36&problem=58&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/algebra_challenge.html?seed=36&problem=58&debug&activity=%5B%5D)

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Opera/9.80 (Windows NT 6.1; U; Edition United Kingdom Local; en) Presto/2.10.229 Version/11.60

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