Question

equaçao de 2 grau : com cálculos, x2-9x+14=0

Answer 1

x2 -9x +14 = 0

a = 2
b = -9
c = 14

${b}^{2} - 4 \times a \times c$
${( - 9)}^{2} - 4 \times 2 \times 14$
$81 - 122$
$- 31$