QMmath
Region: VN
Monday 14 September 2026 14:42:19 GMT
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dycnlf2lt10s :
OK 2×2 +4 =8
2026-09-16 06:32:07
1
Nguyễn Thị Ngoc Hạnh :
8
2026-09-15 03:08:43
2
Trần Hùng :
giải theo hệ đx loại 2
2026-09-15 08:10:06
1
Cường Nguyễn Mạnh :
Cổng 2 phương trình đầu ta sé tìm dc x+y. Sau đó quay lại tìm ra x vs Y.
2026-09-14 14:48:52
1
QMmath :
Quá chuẩn
2026-09-14 14:44:54
0
Trần Linh Anh :
có 2 giá trị
2026-09-14 23:55:17
1
user4992470594208 :
8
2026-09-15 01:31:05
2
Zakir Feyziyevz :
8
2026-09-14 18:07:24
1
QMmath :
😂😂😂🥰🥰🥰
2026-09-14 14:42:43
0
Nikola Tesla :
Solución: x²+xy+x = 14 → x(x+y+1) = 14 ☝🏻 y²+xy+y = 28 → y(y+x+1) = 28 ☝🏻 y/x = 2 ☝🏻 x²+2x²+x = 14 → 3x²+x-14 = 0 → x = {-7/3, 2} ☝🏻 y = {-14/3, 4} ☝🏻 2x+y = 4x = {-28/3, 8} ✅
2026-09-15 08:45:23
1
nejib :
x(x+y+1)=14 2x=28/(x+y+1)=y(y+x+1)/(x+y+1) 2x=y y(y/2+y+1)=28 3/2y^2+y-28=0 3y^2+2y-56=0 y=4 et y=-14/3 2x+y=2y=8 ou 2x+y = -28/3
2026-09-17 07:22:16
1
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