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Mathematics 7 Online
OpenStudy (anonymous):

Estimate the roots of the equation by graphing. x^2-12=0 Round to the nearest tenth and write in set form.

OpenStudy (anonymous):

the roots of the equation are (0,2*sqrt(3)) and (0,-2*sqrt(3)). Explanation: it has two solutions : x^2-(sqrt(12))?^2 = (x-sqrt(12))(x+sqrt(12))=0 this gives x=sqrt(12) and -sqrt(12).

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