Factorise the expression `5b^3-5b` (2 marks)
Algebraic Techniques, SMB-060
Expand and simplify the expression `(a+b)^2-(a-b)^2` (2 marks)
Algebraic Techniques, SMB-056
Expand and simplify the expression `(2y-3)(2y+3)` (2 marks)
Algebraic Techniques, SMB-055
Expand and simplify the expression `(p-4q)(p+4q)` (2 marks)
Algebraic Techniques, SMB-037
Expand and simplify the expression `(2x-1)(2x+1)` (2 marks)