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Help: With Algebra Hmwrk. expressions - simplest form.

#1 User is offline   bohemianheart. 

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Posted 18 February 2008 - 10:11 AM

Well I'm taking Algebra 2. & it's very hard and frustrating. My teacher doesn't really explain much to me. So yeah, can anyone help me how to solve these problems or just take me through steps so i can understand more.

Write each expression in simplest form. Assume that all variables are positive.

38. ( X ^2/3) ^-3
- My teacher said to multiply 2/3 by -3 so i got -2 , so is the answer X = -2 or -2X?

40. ( 3x ^2/3) ^-1

41. 5 (X ^2/3) ^-1

42. (-27x ^-9) ^1/3

44. (X^3 / X^-1) ^-1/4

46. (x^1/2 y^-2/3) ^-6

48. (X^1/4 / y^-3/4) ^12

Thank you soooooo much for helping me. (: Yeah I don't get any of these at all. But yeah. Thank you once again. <33333

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#2 User is offline   f0reveralways 

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Posted 18 February 2008 - 11:01 AM

looks like your hw is just the power rule


..and the negative exponent thing


edit: whoops. i also used the quotient rule in #44



i only did some:




sorry if i made a mistake. lol.
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#3 User is offline   bohemianheart. 

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Posted 18 February 2008 - 11:17 AM

Wah! Thank you so much! It's alright, at least i know how to do it now. My teacher never explained to me sadly ): . But now i get it. Thank you so much for helping me. (: <3333333
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