Ответ:
x=-1
y=-2
Объяснение:
2х² + 3xy - 8у² - 9y + 8
х-2y = 3
x=3+2y
2(3+2y)²+3y(3+2y)–8y²–9y+8=2(9+12y+4y²)+9y+6y²–8y²–9y+8 = 18+24y+8y²-2y²+8=6y²+24y+26
a=6, b=24
y0= -b/(2a)
y0= -24/12= -2
x0= 3+2y0 = 3+2*(-2)=3-4= -1
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Answers & Comments
Ответ:
x=-1
y=-2
Объяснение:
2х² + 3xy - 8у² - 9y + 8
х-2y = 3
x=3+2y
2(3+2y)²+3y(3+2y)–8y²–9y+8=2(9+12y+4y²)+9y+6y²–8y²–9y+8 = 18+24y+8y²-2y²+8=6y²+24y+26
a=6, b=24
y0= -b/(2a)
y0= -24/12= -2
x0= 3+2y0 = 3+2*(-2)=3-4= -1