Question

21. A teacher asked 10 of his students to write a polynomial in one variable
on a paper and then to handover the paper. The following were the
answers given by the students :
2x + 3, 3x2 + 7x + 2, 4x3 + 3x2 + 2, x3 + 3x + 7, 7x + V7, 5x - 7x + 2,
2x2 + 3 - 5x -5, ar3 + bx2 + cx + d, x +
Answer the following questions :
(i) How many of the above ten, are not polynomials ?
(ii) How many of the above ten, are quadratic polynomials?​

Answer 1

Answer: (1) 0

(2) 1

Step-by-step explanation:

(1) Because polynomial has a degree higher than 3 .

(2) According to quadratic polynomial condition :-

ax^2+bx+c = 0 OR ax^2+c = 0

There are no equation in the above question according to the above condition except one 3x^2+7x+2

Answer 2

Answer:

1) one

2) two