Question

equação do segundo grau resolver por bashkara

Answer 1

x^2 -3x -10 = 0 a = 1 b = -3 c = -10
Delta = 9 -4*1*-10 D = 9 -4*-10 D = 9 +40 D = 49

x' = -(-3)+7/2 x' = 10/2 x' = 5
x'' = +3 -7/2 x'' = -4/2 x'' = -2

S {5, -2}

Prova:
25-15-10 = 0
4 +6 -10 = 0

Answer 2

x² - 5x + 6 = 0

a = 1; b = - 5; c = 6

Δ = b² - 4ac
Δ = (-5)² - 4.1.6
Δ = 25 - 24
Δ = 1

x = - b +/- √Δ = - (-5) +/- √1
          2a              2.1

x = 5 + 1 = 6/2 = 3
        2

x = 5 - 1 = 4/2 = 2
        2

Resp.:  x = 2 e x = 3