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Expanding Triple Brackets

Expanding Triple Brackets

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Question 2
a.

Show that (2x+6)(5x−10)(x−4)=10x3−30x2−100x+240(2x + 6)(5x - 10)(x - 4) = 10x^3 - 30x^2 - 100x + 240(2x+6)(5x−10)(x−4)=10x3−30x2−100x+240 for all values of xxx.

[3]
b.

Hence, solve 10x3−30x2−100x+240=010x^3 - 30x^2 - 100x + 240 = 010x3−30x2−100x+240=0.

[2]
Markscheme

Expanding Triple Brackets Questions

  1. GCSE
  2. /Maths
  3. /Expanding Triple Brackets

225 exam-style questions on OCR GCSE Maths Expanding Triple Brackets. Each one has a worked solution and a mark scheme showing where the marks go.

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