Question

equação de segunda grau, quero a continha toda montada

x²+x-110=0

Answer 1

delta = 1^2 - 4×1×(-110)
delta=1+440
delta=441
x=-1+/-raiz de 441/2
x=-1+/- 21/2
x1=-1+21/2=10
x2=-1-21/2=-11

Answer 2

$x^{2} + x -110 = 0 \\ \Delta=1^2-4.1.(-110) = 1+440=441 \\ x_1=\frac{-1-\sqrt{441}}{2.1}=\frac{-1-21}{2}=\frac{-22}{2}=-11 \\ \\ x_2=\frac{-1+\sqrt{441}}{2.1}=\frac{-1+21}{2}=\frac{20}{2}=10 \\ \\ S= \{-11,10 \}$