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There have been 1 items by W M H (Search limited from 06-06-2020)
Posted by W M H on 03-12-2017 - 19:47 in Phương trình, hệ phương trình và bất phương trình
Giải hệ phương trình
x+y-z=2
x^2+y^2+z^2=6
x^3+y^3-z^3=8