Answer:
[tex]5-10i[/tex]
Step-by-step explanation:
we know that
To subtract two complex number, subtract the real parts and subtract the imaginary parts
so
[tex](a+bi)-(c+di)=(a-c)+(b-d)i[/tex]
we have
[tex](7-4i)-(2+6i)[/tex]
so
[tex](7-4i)-(2+6i)=(7-2)+(-4-6)i=5-10i[/tex]
