Thread: Parametric Equation Problem

x^2-6xy+10y^2=4

find all the integer pairs of x and y which satisfiy the equation.

Thanks!

You can solve for x and then choose y values that give integer values of x.

Originally Posted by Telo

x^2-6xy+10y^2=4

find all the integer pairs of x and y which satisfiy the equation.

Thanks!

, ,

the quadratic formula yields ...



since x is an integer value, the value under the radical must be a positive, perfect square value ... finish it.