Question 1070371
y-x=-1
y-7=x^2+2x
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y=x-1
x-1-7=x^2+2x
0=x^2+x+8
x=(1/2) (-1+/- sqrt (1-64)=(1/2)(-1+/- i *sqrt(63)).  No real solutions.
{{{graph(300,300,-10,10,-10,10,x-1,x^2+2x+7)}}}