Rozwiąż algebraicznie układ równań: (x+1) do kwadratu+ y do kwadratu-8= (y-2) do kwadratu+(x-3)(x+3) pod spodem 3x-y=4
(x+1)^2 + y^2 - 8 = (y-2)^2 + (x-3)(x+3)3x-y=4 <=> 3x=4+y
(x+1)^2 + y^2 - 8 = (y-2)^2 + (x-3)(x+3)
x^2 + 2x + 1 + y^2 - 8 = y^2 + 4 - 4y + x^2 - 92x - 7= -4y - 52x+4y=2
x+2y=1
x=1-2yx=1-2y3x=4+y {3x=3-6y- {3x=4+y 0 = -1 -7y7y = -1y = - 1/7x= 1-2yx=1 + 2/7x= 9/7x=9/7y=1/7 L = 3x-y = 3*9/7 - (- 1/7) = 28/7 = 4 = P
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(x+1)^2 + y^2 - 8 = (y-2)^2 + (x-3)(x+3)
3x-y=4 <=> 3x=4+y
(x+1)^2 + y^2 - 8 = (y-2)^2 + (x-3)(x+3)
x^2 + 2x + 1 + y^2 - 8 = y^2 + 4 - 4y + x^2 - 9
2x - 7= -4y - 5
2x+4y=2
x+2y=1
x=1-2y
x=1-2y
3x=4+y
{3x=3-6y
- {3x=4+y
0 = -1 -7y
7y = -1
y = - 1/7
x= 1-2y
x=1 + 2/7
x= 9/7
x=9/7
y=1/7
L = 3x-y = 3*9/7 - (- 1/7) = 28/7 = 4 = P