Question 1127573

{{{5sqrt(2)/(2-i)}}}


={{{(5sqrt(2)(2+i))/((2-i)(2+i))}}}


={{{(5sqrt(2)(2+i))/(2^2-i^2)}}}


={{{(5sqrt(2)(2+i))/(4-(-1))}}}


={{{(5sqrt(2)(2+i))/(4+1)}}}


={{{(cross(5)sqrt(2)(2+i))/cross(5)}}}


={{{sqrt(2)(2+i)}}}