Respuesta :
A.)
The reason to it is to just check the signs.
2x is the same as +2x
-17 is the same as -17
Look to see if it still matches
The reason to it is to just check the signs.
2x is the same as +2x
-17 is the same as -17
Look to see if it still matches
It is a because 2x-17 is also +2x-17, and you can switch it around to get the same answers