〈 x^{8 }_{-} 8x^{8}〉^{-2} 3/20/2014 | Emilyn from New York, NY | 1 Answer | 0 Votes Mark favorite Subscribe Comment Comments Could you confirm the problem please? Parviz's interpretatino is that it's x^{8} - 8x^{(8-2)} But it looks to me like the exponent of -2 outside the parenthesis: (x^{8} - 8x^{8}) ^{-2} There is a vast difference between these. 3/20/2014 | Kay G. They way is written only raises the X factor of the 2nd term to the power of ( 8-2) which is X^6 , not the whole expression. If it should be written other way , students should be aware of their writing. 3/20/2014 | Parviz F. There's parenthesis around it! 3/21/2014 | Kay G. Comment
Could you confirm the problem please? Parviz's interpretatino is that it's x^{8} - 8x^{(8-2)} But it looks to me like the exponent of -2 outside the parenthesis: (x^{8} - 8x^{8}) ^{-2} There is a vast difference between these. 3/20/2014 | Kay G.
They way is written only raises the X factor of the 2nd term to the power of ( 8-2) which is X^6 , not the whole expression. If it should be written other way , students should be aware of their writing. 3/20/2014 | Parviz F.
X^8 - 8 X^ ( 8 -2) = Go to the Comment Section: X^8 - X^6 = X^6 ( X^2 - 1 ) = X ^6 ( X +1) ( X - 1) 3/20/2014 | Parviz F. Comment Comments x^{8} - 8x^{(8-2)} = x^{8} - x^{6} You kinda dropped an 8 out of there. 3/20/2014 | Kay G. You are right thank you: Correction willbe X ^8 - 8 X^6 = X^6 ( X^2 - 8 ) = X^6 ( X + 2 √2) ( X - 2 √2) 3/20/2014 | Parviz F. Comment
You are right thank you: Correction willbe X ^8 - 8 X^6 = X^6 ( X^2 - 8 ) = X^6 ( X + 2 √2) ( X - 2 √2) 3/20/2014 | Parviz F.
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