Respuesta :

answer is number a

hope it helps

Answer:

[tex]\huge \boxed{10+3i}[/tex]

Step-by-step explanation:

[tex](6+4i) - (-4+i)[/tex]

Distribute the negative sign.

[tex](6+4i) +4-i[/tex]

Grouping like terms.

[tex](6+4)+(4i-i)[/tex]

Combining like terms.

[tex]10+3i[/tex]