Start learning →

How many real roots does x³ − 8 = 0 have?

AThree
BNone
CTwo
DOne
Answer & Solution
Correct answer: D. One
Only x = 2 is real; the other two roots of x³ = 8 are a complex conjugate pair.
Practise this question with Quill — CA Foundation →

Keep practising Quadratic Equation

Browse all Quadratic Equation questions for CA Foundation, or explore more Quantitative Aptitude topics.

Start a Quadratic Equation lesson →
Related questions