Question:
For which value of x must the expression √97x be further simplified?
A. 5 B. 10 C. 15 D. 20
Answer:

Explanation:
Given

Required
For what value of x can it be simplified
From the list of options, only (D) is correct
D. 20
Substitute 20 for x in


Express 20 as 4 * 5

Reorder

Split




With other values of x, the given expression can not be simplified.
Hence:
