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humperderp

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Doi! I was just stuck in the mindset that you have to treat the numerator and denominator equally when canceling out - that doesn't apply when factoring out of the expressions of course. Thank you ...
Thanks for your reply, and apologies if I'm just being slow here, but if you factor out 2 from x(4x - 4) wouldn't that equate to 2x(2x - 2)?