For which value of x must the square root

97x

be further simplified

Question:

For which value of x must the expression √97x be further simplified?

A. 5    B. 10     C. 15     D. 20

Step-by-step 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:

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: