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quick maths halp
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Elfy Offline
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Posts: 3,267
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Post: #1
quick maths halp

So, question is: Multiply out and simplify

(3+root2)(3-2root2)

There would be a - and a + 3root2 so they would cancel out.

So I'm left with 9 - 9root2 (I think, 3 x -2root2 is -9root2 right?)

Also

value of 8^-2/3 (two thirds)

(1/8)^2/3

((1/8)^1/3)^2 = (1/2)^2

= 1/4 amirite?

edit: hello i use paint easier to see

[Image: J50T7.jpg]

RIP SCHOOL-SURVIVAL 04/07/2019
[Image: tumblr_lpjpoqOyQ91qb8nljo1_500.gif]
09-19-2011 05:08 AM
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Messages In This Thread
quick maths halp - Elfy - 09-19-2011 05:08 AM
Re: quick maths halp - aaaaaaasd - 09-19-2011, 05:51 AM
Re: quick maths halp - Faby - 09-19-2011, 05:53 AM
Re: quick maths halp - HeartofShadows - 09-19-2011, 06:24 AM
Re: quick maths halp - Elfy - 09-19-2011, 06:50 AM
Re: quick maths halp - LOON_ATTIC - 09-19-2011, 07:02 AM
Re: quick maths halp - Elfy - 09-19-2011, 07:09 AM
Re: quick maths halp - Blobthe15 - 09-19-2011, 07:14 AM
Re: quick maths halp - LOON_ATTIC - 09-19-2011, 07:15 AM
Re: quick maths halp - .Manicrose. - 09-19-2011, 09:28 AM
Re: quick maths halp - The Desert Fox - 09-19-2011, 12:18 PM
Re: quick maths halp - LOON_ATTIC - 09-19-2011, 12:50 PM
Re: quick maths halp - SoulRiser - 09-19-2011, 07:20 PM
Re: quick maths halp - aaaaaaasd - 09-20-2011, 12:34 AM
Re: quick maths halp - UnschoolShqiponjë - 09-20-2011, 02:14 AM
Re: quick maths halp - Elfy - 09-20-2011, 02:31 AM
Re: quick maths halp - LOON_ATTIC - 09-20-2011, 09:08 AM
Re: quick maths halp - Phrozen_Soul - 09-22-2011, 09:01 AM
Re: quick maths halp - Alucard483 - 09-23-2011, 12:13 AM

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