x²/x-5+25/5-x

x²/x-5+25/5-x
x²/x-5+25/5-x

x²/x-5+25/5-x
原式=x²/(x-5)-25/(x-5)
=(x²-25)/(x-5)
=(x+5)(x-5)/(x-5)
=x+5

x2/x-5+25/5-x=x2/x-5-25/x-5=(x2-25)/(x-5)=(x+5)(x-5)/(x-5)=x+5

x²/x-5+25/5-x=（x²-5）/（x-5）=x+5

x²/x-5+25/5-x
=x²/x-5-25/x-5
=(x²-25)/(x-5)
=(x+5)(x-5)/(x-5)
=x+5
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