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Find the Product 7k1/8(3k3/8+3k3/4)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.
- 7k1/8(3k3/8+3k3/4) 7 \mathrm { k } ^ { 1 / 8 } \left( 3 \mathrm { k } ^ { 3 / 8 } + 3 \mathrm { k } ^ { 3 / 4 } \right)


A) 21k1/421k5/821 \mathrm { k } ^ { - 1 / 4 } - 21 \mathrm { k } ^ { - 5 / 8 }

B) 21k3/64+21k3/3221 \mathrm { k } ^ { 3 / 64 } + 21 \mathrm { k } ^ { 3 / 32 }

C) 21k1/2+21k7/821 \mathrm { k } ^ { 1 / 2 } + 21 \mathrm { k } ^ { 7 / 8 }

D) 21k1/221k7/821 \mathrm { k } ^ { 1 / 2 } - 21 \mathrm { k } ^ { 7 / 8 }

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