Mathematics
Senior High
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答えがついていないので答え合わせお願いします。
練習 1 次の方程式の整数解をすべて求めよ。
(2) xy=-2
(1)xy=3
練習 2 次の方程式の整数解をすべて求めよ。
((1)(x-1)(y-3)=7
(3) xy=6
(2) (x+2)(y-1)=4
練習1.
(1)XY=3
(14)=(1,3)
(2xy=-2
(3.1),(-1,-3)(-3,-1)
(x,y) = (-1,2), (1,-2)
(3)xy=6
(x,y) = (2,3), (3,2), (-2,-3), (-3,-2),
(16),(6,1)-6), (-6,-1)
練習2.
(1)(x-1)(y-3)=7
x-1=x, y-3=Y
XY=7
(X,Y) = (1,7), (7,1),
(1-7) (-7-1)
1-1=1x-1
Ly-3=7 14-3=1
JX-1-1xにつ
14-3=-714-3=-1
(x,y)=(2,10),(8,4),
(0-4),(6,2)
(2)(x+2) (y-1)=4
X+2=x, y-1=Y
XY=U
(X,Y) = (1,4), (4,1), (-1,-4), (-4,-1),
(2,2), (-2,-2)
√x+2=1
X+2=4
√x+2=-1
y-1=4 ly-1= |
17-1=-4
√x+2=-4 √x+2=2
Ext2-2
(y-1=-1 (9-1=2y-1=-2
(x,y)=(-1,5)(2,2)、(-3,-3)
(6,0),(0,3), (4,1)
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