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Mathematics 24 Online
OpenStudy (linn99123):

http://prntscr.com/4vskzh @bibby my last one

OpenStudy (bibby):

How do you get the values of x?

OpenStudy (linn99123):

x*x?

OpenStudy (bibby):

remember that roots are the inverse operation to powers

OpenStudy (linn99123):

invers operation?

OpenStudy (bibby):

so if we take the square root of both sides we have \(x^2=-9\) \(\sqrt{x^\cancel{2}}=\sqrt{-9}\) \(x=?\)

OpenStudy (linn99123):

ohh so x would be like 2?

OpenStudy (bibby):

nope x= whatever \(\sqrt{-9}\) is

OpenStudy (linn99123):

-3?

OpenStudy (bibby):

close. rewrite it as \(\sqrt{-9}=\sqrt{9}*\sqrt{-1}\)

OpenStudy (linn99123):

so just 3?

OpenStudy (linn99123):

hold on getting confused

OpenStudy (bibby):

it's 3i

OpenStudy (linn99123):

3i?

OpenStudy (bibby):

do you not know what i is? \(i=\sqrt{-1}\)

OpenStudy (linn99123):

no i dont...

OpenStudy (linn99123):

i need jesus T.T

OpenStudy (bibby):

I need you ;~;

OpenStudy (bibby):

well now you know that i=\(\sqrt{-1}\)

OpenStudy (linn99123):

xD

OpenStudy (linn99123):

you mah have my foot nudes @bibby

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