Exam-Style Question on Algebra Proof
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 175. This question is similar to one that appeared on a GCSE Higher paper (specimen) for 2017. The use of a calculator is not allowed.
Betsy thinks that \((3x)^2\) is always greater than or equal to \(3x\).
Is she is correct?
Show your working to justify your decision
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