To factor the expression \(10x^2 + 50x\), we first need to identify the greatest common factor (GCF) of the terms in the expression.
The GCF of \(10x^2\) and \(50x\) is \(10x\).
We can factor out \(10x\) from the expression:
\[ 10x^2 + 50x = 10x(x^2 + 5x) \]
Thus, the correct factored expression is:
\[ 10x(x + 5) \]
Looking at the answer choices provided, the correct answer is:
(Choice A)
\[10x(x+5)\]