The answer is \(126\sqrt{3}\)
\(\left(2x+10\right)^4\left(x+5\right)^4=\left(\left(2x+10\right)\left(x+5\right)\right)^4\)
\(\left(\left(2x+10\right)\left(x+5\right)\right)^4=\left(2x+10\right)^4\left(x+5\right)^4\)
\(\left(2x+10\right)^4\left(x+5\right)^4\) is your answer
