Question

Plz help me with this problem plz

Answer 1

• {(-80) +70i}

Explanation:

Given that,

(80i)-(80+10i)

we have to express it in the form of (a+bi)

so,

• By subtracting,
• 80i-80-10i
• 70i-80
• -80+70i
• {(-80)+70i}

Here,

a=-80

b=70

Answer 2

(-80 + 70i)

Explanation:

80i - ( 80+10i)

Distribute the minus sign

80i -80 -10i

Combine like terms

-80 +80i -10i

-80 + 70i