2007 iTest Problems/Problem 22
Problem
Find the value of such that the system of equations has exactly two solutions in real numbers.
$\text{(A) } 0 \quad
\text{(B) } 1 \quad
\text{(C) } 2 \quad
\text{(D) } 3 \quad
\text{(E) } 4 \quad
\text{(F) } 5 \quad
\text{(G) } 6 \quad
\text{(H) } 7 \quad
\text{(I) } 8 \quad
\text{(J) } 9 \quad
\text{(K) } 10 \quad
\text{(L) } 11 \quad
\text{(M) } 12 \quad \$ (Error compiling LaTeX. Unknown error_msg)