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/sci/ - Science & Math

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6409053

Anonymous Wed Mar 12 15:26:58 2014 No.6409053 [DELETED]

[DELETED]

[Reply] [Original]

pleb here.

i don't understand how to simplify this

(a^3 b)^2 (-a/b)^3

>>	Anonymous Wed Mar 12 15:32:29 2014 No.6409060 File: 56 KB, 708x915, Алгебра.gif [View same] [iqdb] [saucenao] [google] DIY

>>	Anonymous Wed Mar 12 15:32:58 2014 No.6409061 You're not a pleb. You just don't understand this. Don't make this shitty board lower your self esteem. Also, your answer is -(a^9/b)

>>	Anonymous Wed Mar 12 15:38:28 2014 No.6409068 >>6409053 remove the brackets: a^6b^2(-a^3/b^3) this simplifies to -a^9/b

>>	Anonymous Wed Mar 12 15:43:58 2014 No.6409079 >>6409068 >>6409061 these don't match the answer in the back of my textbook, but they are close, fuck, my algebra >>6409060 thanks i saved this

>>	Anonymous Wed Mar 12 16:05:48 2014 No.6409122 >>6409079 what's the answer in your textbook? (-1/b)*a^9 ? Cause that's the same thing, always remember that dividing is multiplying by the reciprocal.

>>	Anonymous Wed Mar 12 16:26:18 2014 No.6409164 >>6409053 >>6409079 [((a^3)b)^2](-a/b)^3 [(a^3)^2](b^2)[((-a)^3)/(b^3)] [(a^6)(b^2)][(((-1)^3)(a^3))/(b^3)] [(a^6)(b^2)(-1)(a^3)]/(b^3) [-(a^9)(b^2)]/(b^3) -[(a^9)/b)]

>>	Anonymous Wed Mar 12 16:32:48 2014 No.6409176 >>6409164 >>6409122 The answer in my book is -a^6/b

>>	Anonymous Wed Mar 12 16:41:48 2014 No.6409190 >>6409176 Double check the expression/what you wrote down in the OP then.

>>	Anonymous Wed Mar 12 16:51:49 2014 No.6409201 Whatever happened to that bird?

>>	Anonymous Wed Mar 12 17:00:48 2014 No.6409218 >>6409201 Nothing, considering it's not a real bird.

>>	Anonymous Wed Mar 12 17:28:49 2014 No.6409281 >>6409176 shit.. (a^3 b)^2 (-a/b)^3

>>	Anonymous Wed Mar 12 17:31:18 2014 No.6409284 >>6409190 That's the expression in the book lol

>>	Anonymous Wed Mar 12 17:35:18 2014 No.6409295 >>6409284 Then either your book's solution is wrong, or you're not properly writing down the expression from the book on here. Write it in cursive and scan it, or write it on paint or something

>>	Anonymous Wed Mar 12 17:38:18 2014 No.6409300 File: 12 KB, 1199x1357, mybad.png [View same] [iqdb] [saucenao] [google]

>>	Anonymous Wed Mar 12 17:59:18 2014 No.6409346 >>6409300 http://www.wolframalpha.com/input/?i=%28a^3+b%29^2+%28-a%2Fb%29^3&dataset= Your book is wrong

>>	Anonymous Wed Mar 12 17:59:18 2014 No.6409349 >>6409300 the book is wrong, when you multiply exponentials with the same base you just add the exponents

>>	Anonymous Wed Mar 12 18:18:48 2014 No.6409392 >>6409346 >>6409349 wowwww im mad

>>	Anonymous Wed Mar 12 18:19:48 2014 No.6409395 >>6409392 Is this the first time you've encountered an error in a textbook?

>>	Anonymous Wed Mar 12 19:42:44 2014 No.6409586 >>6409395 yes, consider my hymen sundered in that regard