Question

X2-3x-10=0 gente por favor me ajude

Answer 1

${x}^{2} - 3x - 10 = 0 \\ \\ delta = 9 - 4 \times 1 \times ( - 10) = 9 + 40 = 49 \\ \\ x = \frac{ - ( -3) + 7}{2} = \frac{10}{2} = 5 \\ \\ ou \\ \\ x = \frac{3 - 7}{2} = \frac{-4}{2} = -2$

S = {-2, 5}