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Mathematics 19 Online
OpenStudy (anonymous):

solve this equation x^2+2x+7=0

OpenStudy (bahrom7893):

use the discriminant, that will solve anything.

OpenStudy (bahrom7893):

D=b^2-4ac

OpenStudy (bahrom7893):

x1=(-b-sqrt(D))/(2a) x2=(-b+sqrt(D))/(2a)

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