What is a difference of squares?
A difference of squares equations is when the factored form (FF) involves a negative and a positive of the same number.
For example: (x-3) (x+3)
Due to this, the expanded form's b-value is 0.
For example: x² - 9
The expanded form's c-value will be negative because the negative and positive factors multiply together to create a negative square hence the name "Difference of squares."
Example:
EF: x² - 64
the square root of 64= 8
8+(-8)= 0 -------> there is no b-value
8*-8= -64
FF: (x-8)(x+8)
For example: (x-3) (x+3)
Due to this, the expanded form's b-value is 0.
For example: x² - 9
The expanded form's c-value will be negative because the negative and positive factors multiply together to create a negative square hence the name "Difference of squares."
Example:
EF: x² - 64
the square root of 64= 8
8+(-8)= 0 -------> there is no b-value
8*-8= -64
FF: (x-8)(x+8)