Question

(–8)^1/3 is equal to

• A. 2, 2w, 2w²
• B. –2, –2w, –2w²
• C. –2, w, w²
• D. None of these

Answer 1

Answer: (B)

–2, –2w, –2w²

Answer 2

Sol. x³ = –8 ; $\left( - \frac{x}{2} \right)^{3}$= 1; Q $\frac{x}{2}$= 1, w, w² ; x = –2, –2w

and –2w²