Question

factories :49 (a - b)²-25 (a+b)²​

Answer 1

Answer:

49(a – b)^2 – 25(a + b)^2

= [7 (a – b)]2 – [5 (a + b)]

= [7 (a – b) + 5 (a + b)] [7 (a – b) – 5 (a + b)]

= (7a – 7b + 5a + 5b) (7a – 7b – 5a – 5b)

= (12a – 2b) (2a – 12b)

= 2 (6a – b) 2 (a – 6b)

= 4 (6a – b) (a – 6b)

Step-by-step explanation:

hope it helps you

Answer 2

$\huge\fbox\red{Solution}$

→ 49(a-b)²-25(a+b)²

→ 49(a²+b²-2ab)-25(a²+b²+2ab)

→ 49a²+49b²-98ab-25a²-25b²-50ab

→ 24a²+24b²-148ab