[/tex] 4 ( x + a ) ^{2} - 49 y^{2} [/tex]
porfavor ayudenmen
porfavor ayudenmen
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Caso diferencia de cuadrados.
Aolicas.
a² - b² = (a + b)(a - b)
4(x + a)² - 49y² =
2²(x + a)² - 7²y² =
(2(x + a) + 7y)(2(x + a) - 7y) =
(2x + 2a + 7y)(2x + 2a - 7y)
Respuesta.
(2x + 2a + 7y)(2x + 2a - 7y)