Algebra

First, let's combine all like terms. 

 

We have \(3x^{2}-32x+c\) as the simplified version. 

 

Now, let's divide everything by 3 to make our lives idea. 

 

We get \(x^2-\frac{32}{3}x+c/3\). 

 

Now, we divide 32/3 by 2, and we get \(16/3\)

 

Now, \((16/3)^2 = 256/9\). 

 

Now, we have 

\(c/3 = 256/9\\ c=253/3\)

 

Thanks! :)