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Mathematics 9 Online
OpenStudy (anonymous):

what does ± mean?

OpenStudy (anonymous):

it means plus or minus a number.

OpenStudy (cathyangs):

it means positive or negative of whatever comes after it.

OpenStudy (anonymous):

positive or negative

OpenStudy (saifoo.khan):

\[\Huge +/- \to \pm\]

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

plus or minus.

OpenStudy (anonymous):

It is used in quadratic equation.

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