Add or Subtract $$\sqrt [ 3 ] { 27 y } - \sqrt [ 3 ] { 128 y }$$

question 55

Multiple Choice

Add or subtract. Assume all variables represent positive real numbers.
- $$\sqrt [ 3 ] { 27 y } - \sqrt [ 3 ] { 128 y }$$

• A) \(4 \sqrt [ 3 ] { 2 y } - 3 \sqrt [ 3 ] { y }\)
• B) \(3 \sqrt [ 3 ] { y } - 4 \sqrt [ 3 ] { 2 y }\)
• C) \(3 - 4 \sqrt [ 3 ] { 2 }\)
• D) \(7 \sqrt [ 3 ] { y }\)