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ITMC 2018 Grade 11 National Preliminary set01 Question 18

ITMC · ITMC 2018 Grade 11 National Preliminary set01

Question 18

With universal set $\mathbb R$, solve $(3-2\sqrt2)^{x^2-5x-6}=(3+2\sqrt2)^{6+5x-x^2}$.
  1. $\varnothing$
  2. $[-1,6]$
  3. $(-\infty,-1]\cup[6,\infty)$
  4. $\mathbb R\setminus\{-1,6\}$
  5. $\mathbb R$