Tuesday, October 27, 2009

what is wrong with -4>(3t-2)^1/2?

3 comments:

Travis said...
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Travis said...

you need to do (3t-2)^1/2 >0 because it has an even exponant

sean said...

When you square both sides you end up multipying -4 by -4. When you multiply or divide by a negative you
need to switch the sign. So the greater than sign needs to be a less than sign