Question

X2+5x-50=0 ALGUEM ME AJUNDA

Answer 1

Resposta: x' = 5; x'' = -10

Explicação:

x^2 + 5x - 50 = 0

-b ± √b^2 - 4 . (ac) / 2a

a = 1

b = 5

c = -50

-5 ± √5^2 - 4 . (1 . -50) / 2 . 1

x = -5 ± √25 - 4 . (1 . -50) / 2 . 1

x = -5 ± √25 - 4 . - 50 / 2 . 1

x = -5 ± √25 + 200 / 2 . 1

x = -5 ± √225 / 2 . 1

x = -5 ± √15^2 / 2 . 1

x = -5 ± √15 / 2 . 1

x = -5 ± √15 / 2

x = -15 ± 15 / 2

x = 1 - 5 ± 15 / 2

x = -5 ± 15 / 2

x' = 5

x'' = -10