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TIMO 2020 - Senior Secondary (Grades 10-12) - Preliminary Round - Paper 2 Question 10

TIMO · TIMO 2020 - Senior Secondary (Grades 10-12) - Preliminary Round - Paper 2

Question 10

$2x^3+ax^2+bx+3$ is divisible by $2x^2+x-1$. Find $a+b$.
  1. -6
  2. -4
  3. -9
  4. -5