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Australian AMC 2011 - Senior Question 1

AMC AUSTRALIA · Australian AMC 2011 - Senior

Question 1

The expression $3x(x-4)-2(5-3x)$ equals
  1. $3x^2-3x-14$
  2. $3x^2-6x-10$
  3. $3x^2-18x+10$
  4. $3x^2-18x-10$
  5. $9x^2-22x$