Question

X² -12x +35=0
Calcular com o delta

Answer 1

${x}^{2} - 12x + 35 = 0 \\ {x}^{2} - 5x - 7x + 35 = 0 \\ x \times (x - 5) - 7(x - 5) = 0 \\ (x - 5) \times (x - 7) = 0 \\ x - 5 = 0 \\ x - 7 = 0 \\ x = 5 \\ x = 7$

Espero que tenho ajudado ; )