Science & Mathematics - 18 October 2006

Expand each of the following
(x + 3)(x - 2) b) (3x - 7)(x + 4) c) (x - 3)(x + 10)
(x + 5)(x) e) (x + y)(x – 2y) f) (4x + 5)(2x - 3)
Common factor each of the following using the greatest common factor
-3x4y2 - 6x2y5 – 21x5y3 b) 2x3 + 4x3 + 8x9
Factor each of the following
x2 + 5x + 6 b) x2 – 13x – 30 c) x2 + 8x + 12
x2 – 9x + 20 e) x2 – 11x + 18 f) x2 + 7x + 10


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2006-10-18 03:36:11 · 5 answers · asked by Anonymous in Mathematics

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does anyone know anything about crude oil and can you tell my anything with it in?

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does anyone know anything about crude oil and can you tell my anything with it in?

2006-10-18 03:30:57 · 3 answers · asked by girl with kind heart 2 in Chemistry

if yes, why? if no, why?

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cf. http://en.wikipedia.org/wiki/Ununoctium

2006-10-18 03:26:28 · 7 answers · asked by Steven Cooper 1 in Chemistry

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From wikipedia: http://en.wikipedia.org/wiki/Solar_system

"Earth's magnetic field protects its atmosphere from interacting with the solar wind. However, Venus and Mars do not have magnetic fields, and the solar wind causes their atmospheres to gradually bleed away into space."

2006-10-18 03:03:21 · 11 answers · asked by Fxer 2 in Astronomy & Space

Would you like to know or be completely oblivious?

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i tinkin of building MP3 for my module which have solar panel as cover to generate eletricity. but i nt sure whether it work? i wan to noe whether the rate of energy created by solar is is higher or lower than the energy used by the MP3? ( take in a size of a normal MP3)

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Diamond is dense,hard with light colours (light blue etc) where as graphite is less dense,soft and black in colour

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