Question

Formula de baskara Me ajudem pfv

X(x+1)=30

Answer 1

$x {}^{2} + 1 - 30 = 0$


a = 1

b = 1

c = - 30


∆ = 1^2 - 4 . 1 . (-30)

∆ = 1 + 120

∆ = 121

∆ =√121

∆ = 11



X' = - 1 + 11 / 2

X' = 10/2

X' = 5



X" = - 1 - 11 / 2

X" = - 12/2

X" = - 6




S = { - 6. 5 }