Question

Q.3) 2) The coefficient of x2 in 3x3+2x2-x+1 is:
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Answer 1

the answer is zero because the coefficient of x square is not given

Answer 2

Answer:

The coefficient of any factor of a given term refers to all other factors of the same term except the given factor (such that the same term should not be included)

Here,

x2 is a factor of the term 2x2, so its coefficient will be all other factors of 2x2 except given factor that is,x2(2x2 itself should not be included).The only such factor is 2.

Hence, the coefficient of x2 is 2.