Question

"Question 2 Write the coefficients of in each of the following:
(i) 2 + x^2 + x
(ii) 2- x^2 + x^3
(iii) πx^2/2 + x
(iv) 2^(1/2) x - 1

Class 9 - Math - Polynomials Page 32"

Answer 1

The Part of a polynomial separated by + or - sign is called a term of the polynomial. Each Term of a polynomial has a Coefficient, which is the constant associated with the term.

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Solution:

 

i)    2+x²+x

The coefficient of x²  in 2+x²+x is 1.

 

ii)    2- x²+x³

The coefficient of x² in

 2- x²+x³ is -1.

 

iii)        (π/2)x² + x

The coefficient of x² in (π/2)x² + x is π/2.

 

iv)  √2x -1

 

The coefficient of x² in √2x -1 is  0.

 

Answer 2

Hi !

Coefficient is the no: which comes before a term of the polynomial.

(i)    2+x²+x

The coefficient of x²  is 1.

( ii)    2- x²+x³

The coefficient of x²  is -1.

 (iii)        (π/2)x² + x

The coefficient of x² in  π/2.

 (iv)  √2x -1

 The coefficient of x²  is  0.