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ITMC 2018 Grade 8 National Preliminary set01 Question 16

ITMC · ITMC 2018 Grade 8 National Preliminary set01

Question 16

For a negative real number $x$, what is $\sqrt[2018]{x^{2018}}+\sqrt[2017]{x^{2017}}$?
  1. $x$
  2. $2x$
  3. $2x^2$
  4. $x^2$
  5. None of these.