Algebraic Techniques, SMB-054 Expand and simplify the expression `(3a+1)(2-a)+2a+4` (2 marks) Show Answers Only `-3a^2+7a+6` Show Worked Solution `(3a+1)(2-a)+2a+4` `=6a-3a^2+2-a+2a+4` `=-3a^2+7a+6`