SOLUTION: This one has driven me crazy too. Please help!! Evaluate if possible: 3sqrt -64 and 3sqrt64 and sqrt-64 and sqrt64 Thank you

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: This one has driven me crazy too. Please help!! Evaluate if possible: 3sqrt -64 and 3sqrt64 and sqrt-64 and sqrt64 Thank you       Log On


   

Question 159687: This one has driven me crazy too. Please help!!
Evaluate if possible:
3sqrt -64 and 3sqrt64 and sqrt-64 and sqrt64
Thank you

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3sqrt-64=3sqrt(8*8)-1=3*8i=24i
3sqrt64=3sqrt(8*8)=3*8=24
sqrt-64=sqrt(8*8)-1=8i
sqrt64=sqrt(8*8)8