Question

x3-331 X-X2)
(A) 70
(B) 112
(C) 105
(D) 210
Coefficient of X-1 in the expansion of. (x + 3)" + (x + 3)" - (x + 2) + (x+3)n-2 (x + 2)2 + ... + (x + 2)
(A) 103) (B) 0.45) (C) -10,5) (D) "C_(5)
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Answer 1

Answer:

D. 210

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