Respuesta :

apologiabiology
easy peasy, this is a representation of differnce of 2 perfect squares
a^2-b^2=(a-b)(a+b)
pegah
if you have the square of two numbers that are minus each other the factor always is the minus of square root multiply by sum of the square root of them:
(a-b)(a+b) :)))
i hope this is helpful
have a nice day 

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