Question 1172645
<pre><font face = "consolas" color = "indigo" size = 4><b>
Hi  
{{{(a+b)^3 = a^3 + 3a^2b + 3ab^2 + b^3}}}
a = x  and b = 4
Might be best to start as below.. to eliminate any sloppiness
(x + 4)^3 = x^3 + (3)(b)x^2 + 3(b^2)x + 64

(x + 4)^3 = x^3 + (3)(4)x^2 + 3(16)x + 64
(x + 4)^3 = x^3 + 12x^2 + 48x + 64
We all most heartedly agree that is the correct response.
Wish You the Best in your Studies.