Determine the value(s) of the ratio $x:y$ if $2x^2-xy-3y^2 = 0$
85065
Why can ALL quadratic equations be solved by the quadratic formula?
17741
Quick way to solve the system $\displaystyle \left( \frac{3}{2} \right)^{x-y} - \left( \frac{2}{3} \right)^{x-y} = \frac{65}{36}$, $xy-x+y=118$.
87029
Solve $y^2=x^3-4$ in $x,y\in \mathbb{Z}$
80002
zeros of a polynomial
104145
Finding the value of $3(\alpha-\beta)^2$ if $\int_0^2 f(x)dx=f(\alpha) +f(\beta)$ for all $f$
78719
Solve the DE $yy^{\prime}+x=\sqrt{x^2+y^2}$
43537
How can $x^2y''-3xy'+3y=0$ be solved?
1102
Way to determine if X and Y are both over 0
27611
How to solve the differential equation: $yy'^2-2xy'+y=0$
62758
How find this value $\frac{a^3}{(a-p)(a-q)}+\frac{b^3}{(b-p)(b-q)}+\frac{c^3}{(c-p)(c-q)}$
51769
If $x,y,z\in[-1,1]$ and $1+2xyz\geq x^2+y^2+z^2$, then can we infer $1+2(xyz)^n\geq x^{2n}+y^{2n}+z^{2n}$?
121353
If $x$ and $y$ are not both $0$ then $ x^2 +xy +y^2> 0$
39894
Graphing y=x^2 and y=x
32572
What is $\lim_{(x,y)\to(0,0)} \frac{(x^3+y^3)}{(x^2-y^2)}$?
16948
Need help with a proof that if $xy=0$ then $x=0$ or $y=0$
144841
Find general solution $y''y^3=1$
72872
Number of zeroes of solution to $y''(x)+e^{x^2}y(x)=0$ in $[0,3π]$