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 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) […]