Question

Решение систем уравнений второй степени

Answer 1

y - x = - 2
y = x - 2
( x + 3 )( y + 1 ) = 5
( x + 3 )( x - 2 + 1 ) = 5
( x + 3 )( x - 1 ) = 5
X^2 - x + 3х - 3 - 5 = 0
X^2 + 2x - 8 = 0
D = 4 + 32 = 36 = 6^2
X1 = ( - 2 + 6 ) : 2 = 2
X2 = ( - 2 - 6 ) : 2 = - 4
y1 = 2 - 2 = 0
y2 = - 4 - 2 = - 6