nguyễn thị thanh mai - nguyễn thị thanh mai page - Discuss with MathYouLike

nguyễn thị thanh maianswered a question
06/08/2017 at 16:21

1, $x^{3} - 25 x = 0$

x^3-25x=0

X^3-X=0:25

X^3-X=0

X.X.X-X=0

3X-X=0

X-X=0:3

X-X=0

=>X=0

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