Class 8 Exam  >  Class 8 Notes  >  NCERT Solutions (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions, Class 9, Maths

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

Exercise 9.4 

Question 1: 

Multiply the binomials: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

Answer 1: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

 

Question 2: 

Find the product: 

  1. (5-2x)(3+x)
  2. (x+7y)(7x-y)
  3. (a2+ b)(a+ b2)
  4. (p2-q2)(2p+q)

Answer 2: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

 

Question 3: 

Simplify:

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

Answer 3:

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

 

Exercise 9.5 

Question 1: 

Use a suitable identity to get each of the following products: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

Answer 1: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

 

Question 2: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

Answer 2: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

 

Question 3:

Find the following squares by using identities: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

Answer 3: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

 

Question 4: 

Simplify: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

Answer 4: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions, 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

 

Question 5: 

Show that: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions, 

Answer 5: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions, 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

 

Question 6: 

Using identities, evaluate: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions, 

Answer 6: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions, 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

 

Question 7: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

Answer 7: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions, 

 

Question 8: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions, 

Answer 8: 

NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

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FAQs on NCERT Solutions for Class 8 Maths - (Ex - 9.4, 9.5) Chapter 9 - Algebraic Expressions,

1. What is an algebraic expression?
Ans. An algebraic expression is a combination of constants, variables, and arithmetic operations like addition, subtraction, multiplication, and division. These expressions are written in the form of terms and factors and can be simplified using algebraic identities and properties.
2. How do you simplify algebraic expressions?
Ans. To simplify algebraic expressions, we use various algebraic properties and identities. We can combine like terms, factorize expressions, use the distributive property, and remove brackets. We can also use the commutative and associative properties of addition and multiplication to rearrange the terms and simplify the expression.
3. What are the different types of algebraic expressions?
Ans. There are three types of algebraic expressions: monomials, binomials, and trinomials. Monomials are expressions with only one term, binomials are expressions with two terms, and trinomials are expressions with three terms.
4. How do you solve algebraic equations?
Ans. To solve algebraic equations, we need to isolate the variable on one side of the equal sign. We use inverse operations like addition, subtraction, multiplication, and division to simplify the equation and solve for the variable. We can also use algebraic identities and properties to simplify the equation before solving for the variable.
5. What is the difference between an equation and an expression in algebra?
Ans. The main difference between an equation and an expression in algebra is that an equation has an equal sign (=) while an expression does not. An equation represents a balance between two expressions and can be solved to find the value of the variable. An expression, on the other hand, is a combination of constants, variables, and arithmetic operations and can be simplified but not solved.
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