Question: 5) 15 x + 1) ? = 2 ( 7 ) ( x ) what is the coefficent r= O of * in the

5) 15 x + 1) ? = 2 ( 7 ) ( x ) " what is the coefficent r= O of * in the expansion 7 - r = 4 of ( 5 x + 1 ) 77 r = 3 (3 ) ( x ) 7- 3: 4 (3 ) ( x ) 4 . 13 - J rm X5. What is the coefficient of x* in the expansion of (5x +1)

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