RS Aggarwal Class 8 Math Seventh Chapter Factorisation Exercise 7E Solution EXERCISE 7E OBJECTIVE QUESTIONS Tick (√) the correct answer in each of the following: (1) (7a2 – 63b2) = 7(a2 – 9b2) = 7[(a)2 – (3b)2] = 7 (a – 3b) (a + 3b) Ans: (d) (2) (2x – 32×3) = 2x (1 – […]
Tag: Factorisation Class 8 Solution
RS Aggarwal Class 8 Math Seventh Chapter Factorisation Exercise 7D Solution
RS Aggarwal Class 8 Math Seventh Chapter Factorisation Exercise 7D Solution EXERCISE 7D Factorise: (1) x2 + 5x + 6 Solution: Find two numbers whose sum = (2 + 3) = 5 and product = (2 × 3) = 6 ∴ x2 + 5x + 6 = x2 + (3+2)x + 6 = x2 + […]
RS Aggarwal Class 8 Math Seventh Chapter Factorisation Exercise 7C Solution
RS Aggarwal Class 8 Math Seventh Chapter Factorisation Exercise 7C Solution EXERCISE 7C Factorise: FORMULA: (i) a2 + 2ab + b2 = (a + b)2 (ii) a2 – 2ab + b2 = (a – b)2 (1) x2 + 8x + 16 = (x)2 + (2 × x × 4) + (4)2 = (x + 4)2 […]
RS Aggarwal Class 8 Math Seventh Chapter Factorisation Exercise 7B Solution
RS Aggarwal Class 8 Math Seventh Chapter Factorisation Exercise 7B Solution EXERCISE 7B Factorise: FORMULA: (a2 – b2) = (a + b) (a – b) (1) x2 – 36 = x2 – 62 = (x – 6) (x + 6) (2) 4a2 – 9 = (2a)2 – (3)2 = (2a – 3) (2a + 3) […]
RS Aggarwal Class 8 Math Seventh Chapter Factorisation Exercise 7A Solution
RS Aggarwal Class 8 Math Seventh Chapter Factorisation Exercise 7A Solution EXERCISE 7A Factorise: (1) (i) 12x + 15 = [(3×4) x] + (3 × 5) = 3(4x + 5) (ii) 14m – 21 = 7 (2m – 3) (iii) 9n – 12n2 = 3n (3 – 4n) (2) (i) 16a2 – 24ab = 8a […]
