Show that (3x+1)(2x−3)2=12x3−32x2+15x+9(3x + 1)(2x - 3)^2 = 12x^3 - 32x^2 + 15x + 9(3x+1)(2x−3)2=12x3−32x2+15x+9 for all values of xxx.
Practise Edexcel GCSE Maths Expanding Triple Brackets with exam-style questions for Foundation and Higher tier. 56 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.