Question 92 (xii)
Factorise the following using the identity a2−b2=(a+b)(a−b).
x225−625
x225−625=(x5)2−(25)2=(x5−25)(x5+25)
Question 92 (viii)
x29−y225
Question 92 (xxi)
p5−16p
Question 92 (xix)
x4−1