Report - 03 u03 mat4b eso sol mec - WordPress.com · 3 ESO 2 4 1 Ecuaciones Página 58 1. Resuelve: a) 2x 2 – 50 = 0 b)3x 2 + 5 = 0 c) 7x 2 + 5x = 0 a) 2x 2 – 50 = 0 → x 2 = 25 → x

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