Question

How many solutions are there for the equation? x2 + 9x = -7

Answer 1

Choices are 2, 1, and 0.

Answer 2

Generally speaking a quadratic always has 2 solutions, though it may be repeated (so some people say that is only 1 solution), or imaginary (though sometimes people say "no solution"). But in this case, you can use the quadratic formula and find to unique solutions.