Question

which of the following is equivalent to the polynomial below

Answer 1

Try this solution:
1. to find the roots of the equation (D=-36):
$\left[\begin{array}{ccc}x=5+6i\\ x=5-6i\end{array}\right$
2. to simplify the polinom:
x²-10x+61=(x-(5-6i))(x+(5+6i))
Answer: 1