Summer Clouds moderators
28/11/2017 at 10:18-
Nguyễn Hưng Phát 28/11/2017 at 11:47We have:\(\dfrac{x^4.\left(x^2\right)^5}{x^5}=xy\Leftrightarrow\dfrac{x^4.x^{10}}{x^5}=xy\Leftrightarrow x^9=xy\)
With x=0 so y\(\in\)Z
With x\(\ne\)0,because \(x^9=xy\Leftrightarrow x^8=y\)
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\(\dfrac{x^4.\left(x^2\right)^5}{x^5}=\dfrac{x^4.x^{10}}{x^5}=x^9\Rightarrow y=9\)