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September 2, 2015

Homework Help: Algebra-Please check my work

Posted by JoniAnne on Wednesday, October 20, 2010 at 3:08pm.

Posted by JoniAnne on Wednesday, October 20, 2010 at 11:50am.


Please check-

Solve 3 > sqrt(3x)
3x >=o
x>=o/3
x>=0

square both sides and you have 3x < 3^2
3x,9
x<9/3
x<3

answer is 0<=x<3 correct or not?

3(cube) sqrt(2-5) = 3
cube both sides = 2-5x = 27
-5x = 25
x = -5, correct?

Thank you

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