Question

Determine as raizes da função f(x)= -12x +6​

Answer 1

espero que tenha ajudado

Explicação passo-a-passo:

As raizes fazem com que f(x) seja zero

\begin{gathered}f(x)=x^{2}-6x+5\\0=x^{2}-6x+5\end{gathered}

f(x)=x

2

−6x+5

0=x

2

−6x+5

Temos a = 1, b = -6 e c = 5

\begin{gathered}\Delta=b^{2}-4ac\\\Delta=(-6)^{2}-4.1+5\\\Delta=36-20\\\Delta=16\end{gathered}

Δ=b

2

−4ac

Δ=(−6)

2

−4.1+5

Δ=36−20

Δ=16

Fórmula de bhaskara:

\begin{gathered}x=(-b\pm\sqrt{\Delta})/2a\\x=(-[-6]\pm\sqrt{16})/(2.1)\\x=(6\pm4)/2\\\\x'=(6+4)/2=10/2=5\\x''=(6-4)/2=2/2=1\end{gathered}

x=(−b±

Δ

)/2a

x=(−[−6]±

16

)/(2.1)

x=(6±4)/2

x

′

=(6+4)/2=10/2=5

x

′′

=(6−4)/2=2/2=1