Question

f(-1/2)=3x^2-4x+1
obrigada

Answer 1

Resposta:

$\frac{15}{4}$

Explicação passo-a-passo:

$f( - \frac{1}{2} ) = 3( - \frac{1}{2})^{2} - 4( - \frac{1}{2} ) + 1 \\ \\ f( - \frac{1}{2} ) =3( \frac{( - 1) ^{2} }{ {4}^{2} } + \frac{4}{2} + 1 \\ \\ f( - \frac{1}{2} ) =3( \frac{1}{4} ) + 2 + 1 \\ \\ f( - \frac{1}{2} ) = \frac{3}{4} + 3 \\ \\ f( - \frac{1}{2} ) = \frac{15}{4}$

Bons estudos.