Question

factorise 4y²-25factorise factorise 4 y square - 25 ​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

4y^2 is the square of 2y

25 is the square of 5

so,

{(2y)^2-(5)^2}

Now applying the formula a^2-b^2= (a+b)(a-b) for factorisation.

the answer is

(2y+5)(2y-5)