Find the Coefficient a of the Term in the Expansion $~~~~~~$

question 48

Multiple Choice

Find the coefficient a of the term in the expansion of the binomial. Binomial $~~~~~~$ Term
$( 3 x + 2 y ) ^ { 7 }$$~~~~~~~~~~a x ^ { 3 } y ^ { 4 }$

• A)a = 11
• B) \(a = 15,120\)
• C)a = 21
• D) \(a = 128\)
• E) \(a = 840\)

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