Wheres are my Jessie vee fans at

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.