(x -5)^2 = 64

I got the solution set: {-3,13}

2. Find the real solution, if any, use quadratic formula:

x^2 - 4x - 2 = 0

I got the solution set is: {2 - v6 , 2 + v6}

3.) Write the expression in the starndard form a + bi

(-4 + 3i) - (7 - 9i) = ?

I got -11+12i

View the original article here