The equation would be (3+√-16)(6-√-64) A negative square root can not be a real number, meaning that we have to use the imaginary number. (3+4i)(6-8i) How to multiply imaginary numbers... Treat this like an equation looking like (x-a)(y-b) Use FOIL (3+4i)(6-8i) = 18-24i+24i-32i² = 18-32i² (i²= -1 because i= √-1) = 18- (-32) = 18 + 32 = 50
