Question 232210
y^2-15yz-41z^2
{{{y = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
y=(15+-sqrt[-15^2-4*1*-41])/2*1
y=(15+-sqrt[225+164)/2
y=(15+-sqrt389)/2
y=(15+-19.723)/2
y=(15+19.723)/2
y=34.723/2
y=17.362 ans.
y=(15-19.723)/2
y=-4.723)/2
y=-2.362 ans.