Question

if axn-1 + bxn-2 + cxn-3 is a cubic polynomial, where nE N, then find the value of 'n'​

Answer 1

Answer:

4

Step-by-step explanation:

General form of a cubic polynomial is ax

3

+bx

2

+cx+d

⇒ax

n−1

+bx

n−2

+cx

n−3

=ax

3

+bx

2

+cx+d

⇒n−1=3

⇒n=3+1=4

∴n=4