Question

What are the roots of the quadratic equation y=x^2 -10x +125?

Answer 1

Answer:

A is the correct answer

Step-by-step explanation:

Answer 2

Answer:

$x=5\pm10i$

Step-by-step explanation:

$y=x^2-10x+125\\\\0=x^2-10x+125\\\\0-100=x^2-10x+125-100\\\\-100=x^2-10x+25\\\\-100=(x-5)^2\\\\\pm10i=x-5\\\\5\pm10i=x\\\\x=5\pm10i$