Question

9-4 skills practice solving quadratic equations by completing the square

Answer 1

Answer:

By doing it only once

Explanation:

To find the roots of the equation we can simply use the quadratic formula but in certain cases like finding domain/range of a function in the form  ax2+bx+c  , converting it to  a(x+d)2+e  makes it simpler to solve as x appears only once.