Question

Need help multiplying/simplifying the following...

http://imageshack.us/a/img819/1497/simplify.jpg

Answer 1

= 3 x^3/2 ( x^1/2 - 3x^-1/2)

= 3x^(3/2 + 1/2) - 9x(3/2 - 1/2)

= 3x^2 - 9x

Answer 2

you can now factor this

= 3x(x - 3)

Answer 3

ah I see, ...no wonder I kept getting it wrong...I thought when you there is say x^3/2 outside of the parenthesis that it multiplied to the exponents inside??

Answer 4

no on multiplying terms like x^2 and x^3 you add the exponents

Answer 5

ah, is it only when you are raising say (x^2)^4 that you multiply the exponents?

Answer 6

its when you have something like (x^3)^2 that you multiply them

Answer 7

yes

Answer 8

ah okay got yah :D, THANK YOU!!

Answer 9

yw