1.

Factorise of (a-5)^2-(a-8)^2

Answer»

⭐⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐⭐

MOTHER EXPRESSION : (a-5)²-(a-8)²

SOLUTION :

(a-5)²-(a-8)²

= (a-5+a-8) (a-5-a+8) [USING, a²-b² = (a+b) (a-b)]

= 3 (2a-13)

= 6a - 39

➡ So, the required answer is (6a-39).

⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐



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