x^2+xy=0
y=kx+b
по графику
k= -4
b= 5
k+b= -4+5
k+b= 1
тут все просто через дискреминант <span>D = 2</span>2<span> - 4 • 3 • {\super 1}/{\sub 3} = 0</span><span>x</span>1<span> = -0.3333</span><span>x</span>2<span> = -0.3333</span>