. If i = ¡Ì-1, then (i + 1)(6i ¨C 10) is equivalent to?

Answer 1

The fonts mangled your symbols, but if I manage to get it right, we have

i = √-1

(i+1)(6i-10)
= 6i^2 + 6i - 10i - 10
= -6+6i-10i-10
= -16-4i

Answer 2

8.8x10^3 hours in a year approximate how many in one year