Question

Simplify (9 − 5i) − (4 + 10i). (1 point) −10 5 − 15i 5 + 5i 20

Answer 1

(9 -5i) - (4 +10i)

= 9 -5i -4 -10i 

= 5 -15i

Answer 2

Answer:

$5-15i$

Step-by-step explanation:

Simplify (9 − 5i) − (4 + 10i)

$(9 - 5i) - (4 + 10i)$

To subtract we multiply the negative sign inside the second parenthesis

$9 - 5i - 4 - 10i$

Now combine like terms

$-5i-10i=-15i$

$9-4=5$

$(9 - 5i) - (4 + 10i)=-15i+5$

We write it in a+ib form

$5-15i$