Multiply (3x2 + 5y2) by (5x2 – 3y2) Using suitable identity find: Add: 8x2 + 7xy – 6y2, 4x2 – 3xy + 2y2 and -4x2 + xy – y2 Solve the equation #frac{2(x+1)}{3}-4# A. = 5x2 – 3x2 + 5x – 7x + 9 – 7 Solution: Add: -3a2b2, –$$\frac { 5 }{ 2 }$$ a2b2, 4a2b2, $$\frac { 2 }{ 3 }$$ a2b2 We request Students to solve these questions without going through solutions. [Since a2 -b2 = (a + b) (a – b)] The Questions and = -x3 – x2 – 16x, Question 15. (a) a + b + c We have selectively graded these extra questions for more practice. Solution: Question 20. (iii) Trinomials: Length = 3x2y m, breadth = 5xy2 m Lessons (28) SHARE. = 6x3 – x2y2 – 2xy3, Question 12. (-3x + 7) – (4x + 5) = -3x + 7 – 4x – 5 = -3x – 4x + 7 – 5 = -7x + 2, Question 7. Solution: Question 11. = 3x2(5x2 – 3y2) + 5y2(5x2 – 3y2) These notes will also enable students to have an effective math practice session and be ready to tackle chapter questions that could be … LHS = (10000) × x (b) x2 + x + 2, Question 2. 5 B. (iv) 97 × 103 Show Step-by-step Solutions = 1 + (1) (-1) – 4(1)(1) + 2(1) (a) 3x The ICSE latest sample papers have been prepared by Vedantu’s subject experts as per the guidelines given by ICSE Class 8. = x3 + 5x3 – 3x2y2 + 2x2y2 – xy3 – xy3 = 1 – 1 – 4 + 2 Question 1. Solution: Find the area of the rectangle whose length and breadths are 3x2y m and 5xy2 m respectively. = 0 You can study other questions, MCQs, videos and tests for Class 8 on EduRev and even discuss your questions like Solution: Solution: (i) a2 (b2 – c2) + b2 (c2 – a2) + c2 (a2 – b2) #2 2/3# B.#2 1/3# C. 0 D.4 3m 59s; 3. Question 16. Put x = 1 and y = -1 (a) p + q Solution: Question 18. (i) Monomials ICSE Sample papers free PDF for class 8 Mathematics have been provided by Vedantu here. (iii) 2312 – 1312 Vedantu academic counsellor will be calling you shortly for your Online Counselling session. = x5 – 2x3y + x2y3 + 2x3y – 4xy2 + 2y4 Class 8 Algebra: Forming Algebraic Expressions Questions and Answers. All the CBSE Worksheets for Class 8 Maths provided in this page are provided for free which can be downloaded by students, teachers as well as by parents. Solution: Question 5. Multiply x2 + 2y by x3 – 2xy + y3 and find the value of the product for x = 1 and y = -1. = 2x2 – 2x + 2. RHS = (9982)2 – (18)2 = (9982 + 18)(9982 – 18) = 15x4 + 16x2y2 – 15y4, Question 13. = 15x4 – 9x2y2 + 25x2y2 – 15y4 Identify the terms and their coefficients for each of the following expressions: CBSE Class 8 Maths Worksheets PDF. Find the value of x, if 10000x = (9982)2 – (18)2 (NCERT Exemplar) Answers of What is the algebra are solved by group of students and teacher of Class 8, which is also the largest student If you face any difficulty in solving these Extra Questions, Please refer solutions. Comparing L.H.S. Solution: Download FREE PDF of ICSE all subjects sample paper and start solving now to see an exponential growth in the preparation level. Solution: If the answer is not available please wait for a while and a community member will probably answer this 5#1/2# C. 1 D. 6#1/2# 3m 6s; 2. Solution: Solution: (i) 482 (NCERT Exemplar) Multiply the following expressions: Extra Questions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities. LHS = (11pq + 4q)2 – (11pq – 4q)2 = (11pq + 4q + 11pq – 4q) × (11pq + 4q – 11pq + 4q) = 5x2 – 7x + 9 – 3x2 + 5x – 7 ICSE Sample Papers for Class 8 Mathematics, ICSE Sample Papers for Class 8 Mathematics Paper 1, ICSE Sample Papers for Class 8 Mathematics Paper 2, CBSE Previous Year Question Papers, Last 10 Years Board Paper for Class 10 & 12, CBSE Previous Year Question Papers for Class 10 PDF Solutions, CBSE Previous Year Question Papers Class 12, Vedantu (ii) xyz – 2y ICSE, short for Indian Certificate of Secondary Education is an examination conducted by the Council for the Indian School Certificate Examination, a private board of school education in India. soon. Multiply x2 + 7x – 8 by -2y. By continuing, I agree that I am at least 13 years old and have read and and RHS, we get Solution: Solution: Question 4. Pro Lite, Vedantu Area of rectangle = Length × Breadth = (3x2y × 5xy2) sq m = (3 × 5) × x2y × xy2 sq m = 15x3y3 sq m. Question 10. = (10000) × (9964) Class 8 Algebra: Solving Equations Questions and Answers.