Answer:

Step-by-step explanation:
I hope I helped you! :)
Answer: D, When the constants are perfect squares.
Step-by-step explanation:
the “best” method whenever the quadratic equation only contains x2 terms. That implies no presence of any x term being raised to the first power somewhere in the equation.
Hopefully this helps!
Answer:
it seems like i got it wrong, sorry for answering !