IB skill practice

Use conjugate root theorem

Use conjugate roots to complete real-coefficient polynomial factorisations.

Paper 1, Paper 2 5 marks Difficulty 4

Use conjugate root theorem - conjugate-root theorem item

Case B7. Use the conjugate-pair diagram and calculate the requested real, imaginary, product, or multiplicity quantity.

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.