Ответ:
Решение:
(x1,y1)=(1,5)
(x2,y2)=(2,3)
( xy-x=4
( y= 7-2x
x×(7-2x)-x=4
x=1
x=2
y=7-2×1
y=7-2×2
y=5
y=3
(x¹ y¹)=(1,5)
(x² y²)=(2,3)
(1×5-1=4
(2×1+5=7
(2×3-2=4
(2×2+3=7
(4=4
(7=7
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Answers & Comments
Ответ:
Решение:
(x1,y1)=(1,5)
(x2,y2)=(2,3)
Ответ:
( xy-x=4
( y= 7-2x
x×(7-2x)-x=4
x=1
x=2
y=7-2×1
y=7-2×2
y=5
y=3
(x¹ y¹)=(1,5)
(x² y²)=(2,3)
(1×5-1=4
(2×1+5=7
(2×3-2=4
(2×2+3=7
(4=4
(7=7
(4=4
(7=7