Find the Product $$7 \mathrm { k } ^ { 1 / 8 } \left( 3 \mathrm { k } ^ { 3 / 8 } + 3 \mathrm { k } ^ { 3 / 4 } \right)$$

question 427

Multiple Choice

Find the product. Assume variables represent positive real numbers.
- $$7 \mathrm { k } ^ { 1 / 8 } \left( 3 \mathrm { k } ^ { 3 / 8 } + 3 \mathrm { k } ^ { 3 / 4 } \right)$$

• A) \(21 \mathrm { k } ^ { - 1 / 4 } - 21 \mathrm { k } ^ { - 5 / 8 }\)
• B) \(21 \mathrm { k } ^ { 3 / 64 } + 21 \mathrm { k } ^ { 3 / 32 }\)
• C) \(21 \mathrm { k } ^ { 1 / 2 } + 21 \mathrm { k } ^ { 7 / 8 }\)
• D) \(21 \mathrm { k } ^ { 1 / 2 } - 21 \mathrm { k } ^ { 7 / 8 }\)

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