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Descomponiendo 252 = 7 (2² x 3² ) = 7(4 x 9) = 7 (36)
- 7x² = -7 (36)
x² = -7 (36) / -7
x² = 36
Sacando raíz cuadrada a la igualdad:
√x² = √36
Obtendremos 2 soluciones para esta ecuación incompleta de segundo grado:
x₁= + 6
x₂ = - 6
5x² - x = 0
Factor común: x
x (5x - 1) = 0
x₁ = x = 0
x₁ =0
x₂ = 5x -1 = 0
x₂ = 5x = 1
x₂ = x = 1 / 5
x₂ = 1 / 5