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Mathematics 23 Online
OpenStudy (anonymous):

81y^2+49 factor, Thanks

OpenStudy (anonymous):

hi again

OpenStudy (anonymous):

not factorable

OpenStudy (anonymous):

thanks.

OpenStudy (anonymous):

no problem

OpenStudy (anonymous):

do you want to explain why it's unfactorable?

Directrix (directrix):

Assuming that we are factoring over the set of complex numbers: 81y^2+49 = ( 9y +7i) (9y -7i)

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