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Caso.
Factor Común.
x⁴ + 2x³ + x² = Sacas factor comun x²
x²(x² + 2x + 1) = El parentesis es un trinomio al cuadrado perfecto
aplicas a² + 2ab + b² = (a + b)²
x²(x² + 2(x)(1) + 1²) =
x²(x + 1)²
Respuesta.
x²(x + 1)²