Respuesta:
[tex]4 {x}^{2} - 900 = (2x - 30)(2x + 30)[/tex]
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Respuesta:
[tex]4 {x}^{2} - 900 = (2x - 30)(2x + 30)[/tex]
Hola!!
4x² - 900
2x² - 900
dividir entre 3 a 900 y quitar un 0
2x² - 300
2x² - 30
(2x - 30) (2x + 30)
EDUPROSABE