Ayuda con esta ecuacionx2 + x = 9x?
Ayuda con esta ecuacion x2 + x = 9x.
Ayuda con esta ecuacion x2 + x = 9x.
ax² + bx + c = 0
En resumen
X2 + x = 9x 3x = 9x 3x - 9x = 0 - 6x = 0 x = 0.
X2 + x = 9x
3x = 9x
3x - 9x = 0 - 6x = 0
x = 0.
X2 = 9x - x
X2 = 8x
X = raiz de 8
X = 2.
82.
6x - 3 = x + 17 6x - x = 17 + 3 5x = 20 x = 20 / 5 x = 4.
(x - 3)(x + 2).
X + (x + 3) = x - (2x - 6) 2x + 3 = x - 2x + 6 2x + 3 = 6 - x 3x = 3 x = 1.