The Student Room Group

Maths help urgent

Help I don’t get why for the part I circled in red it’s not like my answer on the white board… I mean don’t you make all of equation of the lhs negativeIMG_2570.jpegIMG_2569.jpeg
(edited 11 months ago)
Reply 1
Youre only consdering when |.| has a negative argument, its nothing to do with the -2 outside the |.| function.

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