Các câu hỏi tương tự
giai he phuong trinh \(\hept{\begin{cases}3x+2y=30\\2x+3y=35\end{cases}}\)
Giai he phuong trinh:
a) \(\hept{\begin{cases}\left(x+y\right).\left(y+z\right)=187\\\left(y+z\right).\left(z+x\right)=154\\\left(z+x\right).\left(x+y\right)=238\end{cases}}\)
b) \(\hept{\begin{cases}x^2-y^2=1\\4x^2-5xy=2\end{cases}}\)
Giai he phuong trinh \(\hept{\begin{cases}2x^2-2xy-y^2=2\\^{2x^3-3x^2-3xy^2-y^3+1=0}\end{cases}}\)
20 tháng 4 2020 lúc 21:49
Giai he phuong trinh: \(\hept{\begin{cases}4x^3-y^3=x+2y\\52x^2-82xy+21y^2=-9\end{cases}}\)
Giai he phuong trinh: \(\hept{\begin{cases}\frac{2}{x}+\frac{5}{x+y}=2\\\frac{3}{x}+\frac{1}{x+y}=1,7\end{cases}}\)
giai he phuong trinh
\(\hept{\begin{cases}âx^2-xy+êy^2=13\\x^2+4xy-ây^2=-6\end{cases}}\)
\(\hept{\begin{cases}1\le|5x-4|\le3\\\frac{x+1}{2}>\frac{2x+6}{3}\end{cases}}\)GIAI HE BAT PHUONG TRINH
GIAI HE PHUONG TRINH BANG CACH ÂN PHU
\(\hept{\begin{cases}|X+1|+|Y-1|=5\\|X+1|-4Y+4=0\end{cases}}\)
giai he phuong trinh
\(\hept{\begin{cases}x^2-4\sqrt{3x-2}+10=2y\\y^2-6\sqrt{4y-3}+11=x\end{cases}}\)