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Caso.
Diferencia de cuadrados.
Aplicas.
a² - b² = (a + b)(a - b)
x² - y² =
(x + y)(x - y)
a² - 4 =
a² - 2² =
(a + 2)(a - 2)
1 - m² =
1² - m² =
(1 + m)(1 - m)
a² - 25 =
a² - 5² =
(a + 5)(a - 5)
4a² - 9 =
2²a² - 3² =
(2a + 3)(2a - 3)
a²b⁸ - c² =
a²(b⁴)² - c² =
(ab⁴ + c)(ab⁴ - c)
a¹⁰ - 49b¹² =
(a⁵)² - 7²(b⁶)² =
(a⁵ + 7b⁶)(a⁵ - 7b⁶)
a² - 4 = (a+2)(a-2)
1 - m² = (1+m)(1-m)
a² - 25 = (a+5)(a-5)
4a² - 9 = (2a+3)(2a-3)