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OpenStudy (anonymous):
Is x^2 + 81 factorable?
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OpenStudy (anonymous):
I agree! :)
OpenStudy (anonymous):
No, it is not.
OpenStudy (anonymous):
If it was x^2-81, then it would be.
OpenStudy (amistre64):
depends on the domain to be used
OpenStudy (amistre64):
x^2 + 81 = 0 x^2 = -81 x = +- sqrt(-81) x = 9i , x = -9i
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