Виктория0503

Verified answer

X²+y²-10=0
xy-3=0

1) xy-3=0
ху=3
х=3/у

2) (3/у)²+у²-10=0
9/у²+у²-10=0 (*у²)
9+2у²-10у²=0
9-8у²=0
-8у²=-9
у²=9/8
у1=3/(2√2)
у2=-3/(2√2)

3) х1 = 3 : 3/(2√2) = (2√2)
х2 = 3 : (-3/(2√2)) = - (2√2)