Question

Dada a função 
\begin{lgathered}f(x) = 3 {x}^{2} - 7x + 15 \\ \\ calcule \\ f(0) \: \\ f(2) \\ f( - 2) \\ f(1) \\ f( - 1) \\ f(0) - f(1) + f(1) \\\end{lgathered}f(x)=3x2−7x+15calculef(0)f(2)f(−2)f(1)f(−1)f(0)−f(1)+f(1)​
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Answer 1

Resposta:

Explicação passo-a-passo:

$f(0)=3*0^2-7*0+15=15\\f(1)=3*1^2-7*1+15=3-7+15=11\\f(-1)=3*(-1)^2-7*(-1)+15=3+7+15=25\\f(2)=3*2^2-7*2+15=12-14+15=13\\f(-2)=3*(-2)^2-7*(-2)+15=12+14+15=41\\So\ um\ toque\ a\ descriminante\ e\ negativo\ (-131)$