Question

quais são as raízes da equação x2-5x+6=0​

Answer 1

${x}^{2} - 5x + 6 = 0 \\ \\ x = \frac{ - ( - 5) + - \sqrt{ ({ - 5) }^{2} - 4 \times 1 \times 6 } }{2 \times 1} \\ \\ x = \frac{5 + - \sqrt{25 - 24} }{2} \\ \\ x = \frac{5 + - \sqrt{1} }{2} \\ \\ x = \frac{5 + - 1}{2} \\ \\ x. = \frac{5 + 1}{2} \\ \\ x . = 3 \\ \\ x = \frac{5 - 1}{2} \\ \\ x =2$

s = {2 ; 4}