Relax

Respuesta :

x²=a²+b²-2aby
minus (a²+b²) both sides
x²-a²-b²=-2aby
divide both sides by -2ab
[tex] \frac{x^2-a^2-b^2}{-2ab} =y[/tex]
[tex] \frac{a^2+b^2-x^2}{2ab} =y[/tex]