Question

t^3(4+i)(4-i)+sqrt-25

Answer 1

Not sure what you want to do with this

Answer 2

Let me know when you know. Thanks.

Answer 3

simplify?

Answer 4

yes

Answer 5

\[t^4(4+i)(4-i)+\sqrt{-25}\]
First of all I'm not really sure what simplify means here...
\[\text{Secondly,} \sqrt{-1}=i\]
\[\text{Thridly, } (a+i)(a-i)=a^2-i^2=a^2-(-1)=a^2+1\]

Answer 6

And that is suppose to be t^3 not t^4

Answer 7

So applying what I just said what does that give us so far?

Answer 8

Fill these blanks