9th mathematics exercise question with answer, Mathematics

Factorization – EXERCISE 3.2.2 – Class 9

Factorize the following: (i) 9x2 – 16y2 Solution: = (3x)2 – (4y)2 Using a2 – b2 = (a + b) (a – b) = (3x + 4y) (3x – 4y)   (ii) 5x2 – 7y2 [ Hint : ( 𝟓 )2 = 5 ] Solution: ( 5 x)2 - ( 7 y)2 Using a2 – b2… Continue reading Factorization – EXERCISE 3.2.2 – Class 9

9th mathematics exercise question with answer, Mathematics

Factorization EXERCISE 3.2.2 – Class 9

Factorize the following: (i) 9x2 – 16y2 Solution: = (3x)2 – (4y)2 Using a2 – b2 = (a + b) (a – b) = (3x + 4y) (3x – 4y)   (ii) 5x2 – 7y2 [ Hint : ( 𝟓 )2 = 5 ] Solution: ( 5 x)2 - ( 7 y)2 Using a2 – b2… Continue reading Factorization EXERCISE 3.2.2 – Class 9