x²y-2xy+y+x²-2x=1983
y(x²-2x+1)+x²-2x+1=1983+1
y(x-1)²+(x-1)²=1984
(y-1)(x-1)²=1984
因?yàn)?984=1984×1=496×4=124×16=31×64
所以① y-1=1984
(x-1)²=1
解得y=1985 x=0或2
②y-1=496
(x-1)²=4
解得y=497 x=3或-1
③y-1=124
(x-1)²=64
解得y=125 x=-7或9
滿足x的平方×y-2xy+y+x的平方-2x=1983的整數(shù)對(duì)
滿足x的平方×y-2xy+y+x的平方-2x=1983的整數(shù)對(duì)
數(shù)學(xué)人氣:942 ℃時(shí)間:2020-04-03 14:06:53
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