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Verified Answer :

(3 + 5i)^2 = (3 + 5i)(3 + 5i) = 9 + 15i + 15i - 25 = -16 + 30i

Answer:

\(-16+30i\) is the required expression.

Step-by-step explanation:

 We have been given the expression:

\((3+5i)^2\)

We will simplified it to its maximum which is the equivalent expression of the given expression.

using \((a+b)^2=a^2+b^2+2ab\)

Here,\(a=3,b=5i\)

On substituting the values in the formula we get:

\((3+5i)^2=3^2+(5i)^2+2\cdot 3\cdot 5i\)

\(\Rightarrow (3+5i)^2=9-25+30i\)

\(\Rightarrow (3+5i)^2=-16+30i\)

Hence, \(-16+30i\) is the required expression