Скачать или смотреть Full Ex 9.4 || Ch 9 बीजीय व्यंजक एवं सर्वसमिकाएँ || Class 8 Maths RBSE CBSE NCERT

Ch 9 Algebraic Expressions and Identities || Exercise 9.4 || Class 8 Maths || RBSE CBSE NCERT
PDF File Of Answers : https://drive.google.com/file/d/1uYQK...
EXERCISE 9.4
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 + 3q2) and (3pq – 2q2)
(vi)
2. Find the product.
(i) (5 – 2x) (3 + x) (ii) (x + 7y) (7x – y)
(iii) (a2 + b) (a + b2) (iv) (p2– q2) (2p + q)
3. Simplify.
(i) (x2 – 5) (x + 5) + 25 (ii) (a2+ 5) (b3+ 3) + 5
(iii) (t + s2) (t2 – 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)(x2 – xy + y2)
(vii) (1.5x – 4y)(1.5x + 4y + 3) – 4.5x + 12y
(viii) (a + b + c)(a + b – c)
निष्कासन 9.4
1. द्विपद को गुणा करें।
(I) (2x + 5) और (4x - 3) (ii) (y - 8) और (3y - 4)
(iii) (2.5l - 0.5m) और (2.5l + 0.5m) (iv) (a + 3b) और (x +)
(v) (2pq + 3q2) और (3pq - 2q2)
(Vi)
2. उत्पाद का पता लगाएं।
(i) (5 - 2x) (3 + x) (ii) (x + 7y) (7x - y)
(iii) (a2 + b) (a + b2) (iv) (P2- q2) (2p + q)
3. सरलीकरण करें।
(i) (x2 - 5) (x + 5) + 25 (ii) (a2 + 5) (b3 + 5) + 5
(iii) (t + s2) (t2 - s)
(iv) (ए + बी) (सी - डी) + (ए - बी) (सी + डी) + २ (एसी + बीडी)
(v) (x + y) (2x + y) + (x + 2y) (x - y) (vi) (x + y) (x2 - xy + y2)
(vii) (1.5x - 4y) (1.5x + 4y + 3) - 4.5x + 12y
(viii) (a + b + c) (a + b - c)