Respuesta :

sqdancefan

The trinomial is of the form

... a² +2ab +b² = (a+b)²

where a=7x and b=5.

Then the factorization is

... 49x² +70x +25 = (7x +5)²

lesliekolleroxrkcf
49x²+70x+25
(49x+35)(49x+35 )
(7x+5)(7x+5)
(7x+5)²

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