I'm working my way independently through this tome, particularly with reference to algebra, and I am being stumped by (in)correct answers associated with the exercises.
Some answers are obviously wrong and in most cases I can see where they are wrong. In this particular case I am stymied as I can't see where the answers and/or my working are taking wrong turns.
Question: Factorise 1-(2x-3)^2
Their answer: 2(x-2)(2-x)
I get -4(x-1)(x-2)
I just can't get their answer; am I missing something?
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Cambridge Higher Maths GCSE for AQA Student Book - Algebra watch
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Last edited by MathsDuffer; 28-04-2016 at 14:46. Reason: Missed ) in -4(x-1)(x-2)
- 28-04-2016 14:34