LiveWire Peer Support NetworkPrintable Version of Topic "Multiplying Radicals"
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-- Posted by KRNsoccerplayer24 at 9:49 pm on Dec. 7, 2008 I got a problem that is squareroot -81 multiplied by squareroot -25 i dun get how to do it...i thought the answer would be 45
-- Posted by bstodge at 9:51 pm on Dec. 7, 2008 81x25=2025 square root of 2025=??? ???=answer
-- Posted by noraa at 9:51 pm on Dec. 7, 2008 There's no such thing as the square root of a negative number, it's an imaginary number. So you get i*i which would be i squared.
-- Posted by Dylan6405 at 9:51 pm on Dec. 7, 2008 Its 1 AM FUCK MATH
-- Posted by The Wolfhound at 9:52 pm on Dec. 7, 2008 That would be sqrt (-81) * sqrt (-25) = sqrt (81*25) = 9*5 = 25 Clear?
-- Posted by KRNsoccerplayer24 at 9:52 pm on Dec. 7, 2008 Quote: from dylan6405 at 9:51 pm on Dec. 7, 2008
I got exams dude...college...its hard...i need to study...
-- Posted by Thanantos at 9:53 pm on Dec. 7, 2008 well i suck at math it came to me when i did it and i forgot it so sorry
-- Posted by hubbabubba52 at 9:53 pm on Dec. 7, 2008 25..its like the easiset problem ever..
-- Posted by noraa at 9:53 pm on Dec. 7, 2008 Quote: from The Wolfhound at 9:52 pm on Dec. 7, 2008 No, because sqrt of a negative is an imaginary!
-- Posted by The Wolfhound at 9:53 pm on Dec. 7, 2008 College? You're kidding me, right? You're doing THIS in college? This is going to be easier than I thought...
-- Posted by JudeLaurence at 9:55 pm on Dec. 7, 2008
sqrt(-81) = 9i
-- Posted by KRNsoccerplayer24 at 10:00 pm on Dec. 7, 2008 Quote: from The Wolfhound at 9:53 pm on Dec. 7, 2008
-- Posted by KRNsoccerplayer24 at 10:02 pm on Dec. 7, 2008 Quote: from DarkLink224 at 9:55 pm on Dec. 7, 2008
would it be 45i^2
-- Posted by JudeLaurence at 10:05 pm on Dec. 7, 2008 i is the sqrt(-1), so i^2 = -1.
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Its 1 AM FUCK MATH