Question

1
The coefficient of x in the expansion (x+3)3is:
a) 1 b) 9 c)18 d) 27

Answer 1

Answer:

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Yes

Step-by-step explanation:

1

Answer 2

Step-by-step explanation:

If x=1

(x+3)3=(1+3)3

          =(4)3

          =12

b) If x=9

      (x+3)3=(9+3)3

                 =(12)3

                 =36

c)If x=18

(x+3)3=(18+3)3

          =(21)3

          =63

d)If x=27

(x+3)3=(27+3)3

          =(30)3

          =90