What are the solutions of each equation? Use a graph of the related function. a. x2 + 4 = 4 b. x2 + 16 = 0 c. x2 - 49 = 0

Step-by-step explanation:

a) x^2 + 4 = 4 is equivalent to x^2 = 0, which has two real, rational roots: {0, 0}

b) x^2 + 16 has two equal, imaginary roots: {-4i, 4i}

c) x^2 - 49 has two different, real roots: {-7, 7}