Question

Encontrar soluciones (factorizando)
1)5x^2-25x+30=0
2)3x^2+2x-1=0
con procedimiento :c

Answer 1

Explicación paso a paso:

1. Ejercicio#1

$5x {}^{2} - 25x + 30 = 0 \\ x {2} - 5x + 6 = 0 \\ x {}^{2} - 2x - 3x + 6 = 0 \\ x \times (x - 2) - 3(x - 2) = 0 \\ (x - 2) \times (x - 3) = 0$

$x - 2 = 0 \\ x - 3 = 0 \\ x = 2 \\ x = 3$

2.Ejercicio #2

$3x {}^{2} - 2x {}^{2} - 1 = 0 \\ 3x { \times }^{2} - 3x - x - 1 = 0 \\ 3x \times (x + 1) - (x + 1) = 0 \\ (x + 1) \times (3x - 1) = 0$