Question

factorise 25a^2-36b^2​

Answer 1

Step-by-step explanation:

25a^2 - 36b^2

= [5a]^2 - [6b]^2

Since,    x^2 - y^2 = [x+y][x-y]

= [5a+6b][5a-6b]

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Answer 2

Answer:

as a^2 - b^2 = (a+b)(a-b)

here,

25a^2 - 36b^2

= (5a)^2 - (6b)^2

= (5a+6b) (5a-6b)