Question

Calcule o valor númerico da expressão albegica 4a + 4b2, para a =2 e para a b=3. Marque a alternativa correta a) 24 b)26

Answer 1

$\large\boxed{\begin{array}{l}\rm 4a+4b^2\bigg|_{a=2~~b=3}=4\cdot2+4\cdot3^2\\\\\rm 4a+4b^2\bigg|_{a=2~~b=3}=8+4\cdot9\\\\\rm 4a+4b^2\bigg|_{a=2~~b=3}=8+36\\\\\rm 4a+4b^2\bigg|_{a=2~~b=3}=44\end{array}}$