The Student Room Group

Inequalities

Where did i go wrong? 83AF3450-80C3-4BA9-97A2-705A4511E66E.jpegEB78DA53-6E7E-42CE-A869-41797A8A8E74.jpeg
(edited 1 year ago)
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Original post by Bigflakes
Where did i go wrong? 83AF3450-80C3-4BA9-97A2-705A4511E66E.jpegEB78DA53-6E7E-42CE-A869-41797A8A8E74.jpeg


Does -7 satisfy your conditions and the requirements of the question?

You probably want to consider all the regions of interest: x < 0 and x > 0 as well as x < -3 and x > -3 because the RHS needs a sign reversal for x < -3.
try drawing the graphs for both functions

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