Algebraic Techniques, SMB-041 Expand and simplify the expression `(4x-3y)(y-x)` (2 marks) Show Answers Only `-4x^2+7xy-3y^2` Show Worked Solution `(4x-3y)(y-x)` `=4xy-4x^2-3y^2+3xy` `=-4x^2+7xy-3y^2`