1998=1900+98
19x²+98y²=1900+98
19·100+98·1=1900+98
x²=100 ⇒x=±10
y²=1⇒ x=±1
О т в е т. (10;1); (-10;-1); (-10;1); (10;-1)
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1998=1900+98
19x²+98y²=1900+98
19·100+98·1=1900+98
x²=100 ⇒x=±10
y²=1⇒ x=±1
О т в е т. (10;1); (-10;-1); (-10;1); (10;-1)