Odpowiedzi

2010-01-19T17:08:41+01:00
A)(x-5) do kwadratu +x(3-x)+5y=-1
x^-10x+25+3x-x^+5y=-1
-7x+5y=-26

(y-3) do kwadratu+(5-y)(5+y)+x=6
y^-6y+9+25-y^+x=6
x-6y=-28 /*7

y=5,3
x=3,8

b)(x+2)do kwadratu -(x-3)(x+3)-2y=-1
x^+4x+4-x^+9-2y=-1
4x-2y=-14 /*2

(y-8)do kwadratu-(y-10) do kwadratu+3x=14
y^-16y+64-y^+20y-100+3x=14
3x+4y=50

x=1,83
y=11.13