Respostas AVA

CÁLCULO IV

$\displaystyle{y}={3}{{x}}^{{2}}+{9}$
$\displaystyle{y}={{x}}^{{2}}-{12}{x}+{57}$
$\displaystyle{y}={{x}}^{{2}}-{5}{x}+{6}$
$\displaystyle{y}={{x}}^{{2}}-{7}$
$\displaystyle{y}={{x}}^{{2}}+{6}{x}$