Question

Urgent va rog frumos.

Answer 1

Rezolvare:

a)

${x}^{2} - 5x + 6 = 0 \\ a = 1 \\ b = 5 \\ c = 6 \\ delta = {b}^{2} - 4ac = {5}^{2} - 4 \times 1 \times 6 = 25 - 24 = 1$