Quote: from MixedDelight at 7:27 pm on Sep. 23, 2008
Math=heartache.
math is fucking awesome
Looks like we were all wrong...the answer was:
(s-1+8f)^2 (s-1-8f)^2
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7:30 pm on Sep. 23, 2008 | Joined: Feb. 2008 | Days Active: 511 Join to learn more about 2kewl4u2knowIndiana, United States | Female | Posts: 19,916 | Points: 25,582
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Permious
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Quote: from 2kewl4u2know at 7:30 pm on Sep. 23, 2008
Quote: from MixedDelight at 7:27 pm on Sep. 23, 2008
Math=heartache.
math is fucking awesome
Looks like we were all wrong...the answer was:
(s-1+8f)^2 (s-1-8f)^2
wtf
that answer is fucking wrong
it should be
(s - 1 + 8f)(s - 1 - 8f)
fucking trust me
------- jesus christ was a cunt and a rapist
7:31 pm on Sep. 23, 2008 | Joined: July 2008 | Days Active: 81 Join to learn more about PermiousMontana, United States | StraightFemale | Posts: 4,033 | Points: 3,952
Permious
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if you multiply out what i just wrote you WILL get s^2 - 2s + 1 - 64f^2
------- jesus christ was a cunt and a rapist
7:31 pm on Sep. 23, 2008 | Joined: July 2008 | Days Active: 81 Join to learn more about PermiousMontana, United States | StraightFemale | Posts: 4,033 | Points: 3,952
Quote: from MixedDelight at 7:27 pm on Sep. 23, 2008
Math=heartache.
math is fucking awesome
Looks like we were all wrong...the answer was:
(s-1+8f)^2 (s-1-8f)^2
wtf
that answer is fucking wrong
it should be
(s - 1 + 8f)(s - 1 - 8f)
fucking trust me
The math program my boyfriend (who I'm helping with these) is using fucking sucks...
Post edited at 7:33 pm on Sep. 23, 2008 by 2kewl4u2know
------- "Energizer Bunny arrested, charged with battery."
7:32 pm on Sep. 23, 2008 | Joined: Feb. 2008 | Days Active: 511 Join to learn more about 2kewl4u2knowIndiana, United States | Female | Posts: 19,916 | Points: 25,582
Permious
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(s - 1 - 8f)(s - 1 + 8f)
= s(s - 1 + 8f) - 1(s - 1 + 8f) - 8f(s - 1 + 8f)
= s^2 - s + 8fs - s + 1 - 8f - 8fs - 8f - 64f^2
= s^2 - 2s + 1 - 64f^2
yep i was totally right
------- jesus christ was a cunt and a rapist
7:34 pm on Sep. 23, 2008 | Joined: July 2008 | Days Active: 81 Join to learn more about PermiousMontana, United States | StraightFemale | Posts: 4,033 | Points: 3,952
Hold on...I think my boyfriend is just typing it all in wrong...starting to piss me off. Another problem asked for w^3 - 125 factored, and I gave him (w-5)^2(w+5) and it said it was wrong...because it didn't want that simplified of an answer.
FUCKING starting to piss me off.
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7:36 pm on Sep. 23, 2008 | Joined: Feb. 2008 | Days Active: 511 Join to learn more about 2kewl4u2knowIndiana, United States | Female | Posts: 19,916 | Points: 25,582
7:36 pm on Sep. 23, 2008 | Joined: Sep. 2008 | Days Active: 97 Join to learn more about classicalandrewAustralia | Label FreeMale | Posts: 1,026 | Points: 2,108
Permious
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the rule is x^3 - y^3 = (x - y)(x^2 + xy + y^2)
so w^3 - 125 = w^3 - 5^3 = (w - 5)(w^2 + 5w + 25) which can't be factorised any further
------- jesus christ was a cunt and a rapist
7:39 pm on Sep. 23, 2008 | Joined: July 2008 | Days Active: 81 Join to learn more about PermiousMontana, United States | StraightFemale | Posts: 4,033 | Points: 3,952
so w^3 - 125 = w^3 - 5^3 = (w - 5)(w^2 + 5w + 25) which can't be factorised any further
Yeah..I see that now...tonight is just a horrible night for math for me
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carmen2487
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a^2-b^2=a+b(a-b) =]
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Siress
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No, Carmen. No. (a+b)(a-b)!=a+b(a-b)!=a^2-b^2 != means not equal.
Permious has been correct on everything I've read.
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