1.Phân tích đa thức thành nhân tử:
a)$y^{3}(z-x)-x^{3}-(y-z)-z^{3}-(x-y)$y3(z−x)−x3(y−z)−z3(z−x)
b)$a(b^{3}-c^{3})-b(c^{3}-a^{3})+c(a^{3}+b^{3})$a(b3−c3)+b(c3−a3)+c(a3+b3)
PTĐTTNT a)$y^{3}(z-x)-x^{3}-(y-z)-z^{3}-(x-y)$y3(z−x)−x3(y−z)−z3(z−x)
Started By lequoc, 05-10-2015 - 21:23
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