shashaboo
what are the solutions?
9x2 + 16 = 0



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jazzygirl127
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9x2? are you working with polynomials or did you just type it wrong?

shashaboo
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dw:1358461205942:dw

slaaibak
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there are no real solutions...
x2 = 16/9
\[x = \pm {4 \over 3} i\]

jazzygirl127
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this doesn't work because 34 doesn't equal 0 so there are no solutions

jazzygirl127
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oops not 34 but it still doesn't work

slaaibak
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she means:
\[9x^2 + 16 = 0\]

shashaboo
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@slaaibak how did u get that

jazzygirl127
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oh ok thank you yes but it still doesn't work

slaaibak
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\[9x^2 + 16 = 0 \rightarrow 9x^2 = 16\]
\[x^2 = {16 \over 9}\]
\[x = \pm \sqrt{16 \over9} \rightarrow x = \pm {4 \over 3} \times \sqrt{1} = \pm {4 \over 3}i\]

slaaibak
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@jazzygirl127 yes, it does work.

shashaboo
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thanks you (:

slaaibak
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my pleasure