Chapter 3. Algebraic Expressions and Polynomials NIOS Class 10 Mathematics Chapter-Wise Important Questions and Answers
Chapter 3. Algebraic Expressions and Polynomials | NIOS Class 10 Mathematics Important Questions, Fully Solved Answers, and Chapter-wise Exam Preparation Guide.
Chapter 3. ALGEBRAIC EXPRESSIONS AND POLYNOMIALS 
Optional Questions and Answers for Algebraic Expressions and Polynomials [1 Mark]
CHECK YOUR PROGRESS 3.1
Short Questions and Answers for Algebraic Expressions and Polynomials [1 or 2 Marks]
1. Write the variables and constants in each of the following:
(i) 1+y 
(ii) 23x+13y+7 
(iii) 45x2y3
(iv) 25xy5+12 
(v) 2x2+y2-8
(vi) x+1x 
Solution: (i) 1+y
The variable is y .
The constant is 1 .
(ii) 23x+13y+7
The variable are x and y .
The constants are 23 ,13 and 7 
(iii) 45x2y3
The variable are x and y .
The constant is 45 
.
(iv) 25xy5+12
The variable are x and y .
The constants are 25 and 12 
.
(v) 2x2+y2-8
The variable are x and y .
The constants are 2 and – 8 .
(vi) x+1x
The variable is x .
There are no constants .
2. In 2x2y
, write the coefficient of (i) x2y 
(ii) x2
(iii) y
Solution: (i) The coefficient of x2y is 2
(ii) The coefficient of x2 is 2y
(iii) The coefficient of y 
is 2x2
.
Long Questions and Answers for Algebraic Expressions and Polynomials [ 3 or 4 Mark]
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