Evaluate the exponential expression and enter your answer .
3*(5+ 4)^2 -4^2 ? help plz thank you :)

Question

Evaluate the exponential expression and enter your answer .> 
3*(5+ 4)^2 -4^2 ? help plz thank you :)

accessdenied · Answer

$$ 3(5 + 4)^2 - 4^2 $$
Like that?

accessdenied · Answer

I think it goes, "[P]lease [E]xcuse [M]y [D]ear [A]unt [S]ally" for order of evaluating
 P = Parentheses
 E = Exponents
 D, M = Division and Multiplication
 A, S = Addition and Subtraction

accessdenied · Answer

so... 
$$ \begin{split}
3(5+4)^2 - 4^2 &~~~~~~~~~~~~~~Evaluate~parentheses~first\
3(9)^2 - 4^2 &~~~~~~~~~~~~~~Now~exponents\
3(81) - 16 &~~~~~~~~~~~~~~Then~we~multiply\
243 - 16 &~~~~~~~~~~~~~~And~lastly~we~subtract\
227&~~~~~~~~~~~~~~and~we're~done!\
\end{split} $$