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x^2+y^2=9/4 y^2 + y^2= 13/4 y^2
13/4 y^2 = 1872
y²=576
y=24
x= 1,5*24=36
te liczby to 24 i 36
x/y=3/2
2x=3y
x=3/2y
9/4y²+y²=1872
13/4y²=1872
y²=576
y=24 lub y=-24
x=3/2 *24 lub x=3/2 *(-24)
x=36 lub x=-36
3a=2b
a=2/3b
(2/3b²)+b²=1872
4/9b²+b²=1872
13/9b²=1872
13b²=16848
b²=1296
b=36
a²=1296
a=24
Odp.: a=24; b=36.