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Mathematics 13 Online
OpenStudy (anonymous):

x^2 – x = 2

OpenStudy (anonymous):

(x-2)(x+1)=0 ===>x=2 or x=-1

OpenStudy (anonymous):

x^2-x-2=0 x^2-2x+x-2=0 x(x-2)+1(x-2)=0 (x-2)(x+1)=0 x=2 or x=-1

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