Solve the equation .

Answer and explanation

Correct answer: C.

  1. Step 1: , so is a factor. Step 2. The quotient is , so . **Answer: . Why not the others:** has every sign reversed, factorises as , which expands to , and only stops after the first factor.

Practise more Polynomials and the remainder theorem.

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Solve the equation x 3 + 2x 2 - 5x… | Singapore GCE O-Level