Question

determine o quadrado das somas
(a elevado a 4 + 5)² e (9sobre2 + 6²sobre 3)²

Answer 1

$(a^4 + 5)^2 \\ \\ (a^4)^2 + 2.(a^4).5 + 5^2 \\ \\ =\ \textgreater \ a^8 + 10a^4 + 25$

===

$(\dfrac{9}{2} + \dfrac{6^2}{3}) ^2 \\ \\ \\ (\dfrac{9}{2} + \dfrac{36}{3} )^2 \\ \\ \\ (\dfrac{9}{2} + 12 )^2 \\ \\ \\ ( \dfrac{33}{2} )^2 \\ \\ \\ =\ \textgreater \ \dfrac{1089}{4}$