exam Maths Puzzle Numerical Ability

another problem; help please thanks
Find the difference: (1-9i)-(5-i^2-8i)

Read Solution (Total 0)

exam Other Question

[ 2 1 ] + [ 6 -2 ] - [ 2 2]
-1 2 3 0 1 1
How can I solve radical 360 divided by radical 6?