NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.4 are part of NCERT Solutions for Class 8 Maths. Here we have given NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.4.

- Algebraic Expressions and Identities Class 8 Ex 9.1
- Algebraic Expressions and Identities Class 8 Ex 9.2
- Algebraic Expressions and Identities Class 8 Ex 9.3
- Algebraic Expressions and Identities Class 8 Ex 9.5

Board |
CBSE |

Textbook |
NCERT |

Class |
Class 8 |

Subject |
Maths |

Chapter |
Chapter 9 |

Chapter Name |
Algebraic Expressions and Identities |

Exercise |
Ex 9.4 |

Number of Questions Solved |
3 |

Category |
NCERT Solutions |

## NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities Ex 9.4

**Ex 9.4 Class 8 Maths Question 1.**

Multiply the binomials :

**(i)** (2x + 5) and (4x – 3)

**(ii)** (y – 8) and (3y – 4)

**(iii)** (2.5l – 0.5m) and (2.5l + 0.5m)

**(iv)** (a + 3b) and (x + 5)

**(v)** (2pq + 3q^{2}) and (3pq – 2q^{2})

**(vi)** \(\left( \frac { 3 }{ 4 } { a }^{ 2 }+3{ b }^{ 2 } \right) and\quad 4\left( { a }^{ 2 }-\frac { 2 }{ 3 } { b }^{ 2 } \right) \)

**Solution:**

**Ex 9.4 Class 8 Maths Question 2.**

Find the product :

**(i)** (5 – 2x)(3 + x)

**(ii)** (x + 7y)(7x – y)

**(iii)** (a^{2} + b)(a + b^{2} )

**(iv)** (p^{2} – q^{2})(2p + q)

**Solution:**

**Ex 9.4 Class 8 Maths Question 3.**

Simplify :

**(i)** (x^{2} – 5)(x + 5) + 25

**(ii)** (a^{2} +5)(b^{3} +3)+ 5

**(iii)** (t +s^{2})(^{2} – s)

**(iv)** (a + b)(c – d) + (a – b)(c + d) + 2 (ac + bd)

**(v)** (x + y)(2x + y)+ (x + 2y)(x – y)

**(vi)** (x + y)(x^{2} – xy + y^{2})

**(vii)** (1.5x – 4y) (1.5x + 4y + 3) – 4.5x + 12y

**(viii)** (a + b + c)(a + b – c)

**Solution:**

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