PLIS LA OCUPO PARA MAÑANA 3x² + 6x = 0 2x² + 10x - 48 = 0 x² = - 9x + 15 5x² = 125 x² - 8x = 0 9x² - x = 0 x² - 7x + 12 = x² + x + 1 (x - 1)(x + 2) = 0 2 / 4x + 1 / 2x - 3 / 6 = 0.
En resumen
Respuesta : a)× = 0 × = - 2b)× = 3 × = - 8c)nosed)× = 5e)× = 0 × = 8f)× = 0 × = 1 / 9g)× = 11 / 8h)× = 1 × = - 2i)nose.
Respuesta : a)× = 0 × = - 2b)× = 3 × = - 8c)nosed)× = 5e)× = 0 × = 8f)× = 0 × = 1 / 9g)× = 11 / 8h)× = 1 × = - 2i)nose.
5% de 450 = 22. 5 1% de 450 = 4. 5 38% de 450 = 171 50 + 50 + 71 = 171 ó (50 * 2) + 71 10% de 120 = 12 5% de 120 = 6 55% de 120 = 66 30 + 30 + 6 = 66 ó (30 * 2) + 6 = 66 5% de 520 = 26 1% de 520 = 5. 2 115% de 520 = 598…
Resolver. 3x + 2 = 75 3x = 75 - 2 3x = 73 x = 73 / 3 x - 2 + 3x + 4 = 66 4x + 2 = 66 4x = 66 - 2 4x = 64 x = 64 / 4 x = 16.
10 es 1 entero y 1750 es 1 entero con 3 / 4.