Question

mim ajudem pra amanhã 9x*+6x+1=0

Answer 1

ax^2+bx+c=0

9x^2+6x+1=0

a = 9 b = 6 c = 1

▲ = b^2 - 4. a. c
▲ = 6^2 - 4 . 9 . 1
▲ = 36 - 36
▲ = 0

x = -b +- raiz de delta / 2 . a
x = -6 +- raiz de 0 / 2. 9
x = -6 +- 0 / 18
x1 = -6 + 0 / 18
x1 = -6 / 18 ÷ 6
x1 = -1 / 3

x2 = -6 - 0 / 18
x2 = -6 / 18 ÷ 6
x2 = -1 / 3

S = { -1/3 , -1/3}