Chapter 2 Algebra Recall Flashcards
1
Q
How can you spot a difference of two squares expression?
A
- must be two terms
- must be separated by a negative sign
- each term must be a perfect square
- second term must be a square number
2
Q
What is the rule to factorising difference of two squares expressions?
A
x2 - n2 = (x + n)(x - n)
