Find the Coefficient a of the Term in the Expansion $( 2 x - 5 y ) ^ { 9 } ~a x ^ { 4 } y ^ { 5 }$

question 54

Multiple Choice

Find the coefficient a of the term in the expansion of the binomial.​ Binomial Terms
$( 2 x - 5 y ) ^ { 9 } ~a x ^ { 4 } y ^ { 5 }$ ​

• A)-6,300,001
• B)-6,300,002
• C)-6,299,999
• D)-6,300,000
• E)-6,299,997

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