A sum of cubes
A sum of cubes
4 marks
TGM Original
Factorise x3+8 as fully as possible over the real numbers. Justify why your factorisation is complete.
Solution:
Solution locked
680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs tuition enrolment.
Create a free account to practise similar questions.
Answer:\((x+2)(x^2-2x+4)\); the quadratic discriminant is \(-12<0\).
Need help? Join our JC Math tuition classes.
Learn more