Question

factorise : (5a-b)(5a +b)​

Answer 1

Answer:

= (5a - b) (5a + b)

= (5a)^2 - (b)^2

Answer 2

Answer:

Step-by-step explanation:

this is in the formula a²+b²=(a+b)(a-b)

a=5a

b=b

(5a-b)(5a+b)=(5a)²-b²

                   =25a²-b²

HOPE THIS HELPS

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