Question

Which choice is equivalent to the expression below? -25 ​

Answer 1

Answer:

Option A.

Step-by-step explanation:

The given expression is

$-25$

According to the reflexive property of equality, all values are equal to itself.

a = a

where, a be any real number.

Using the reflexive property we can say that

$-25=-25$

It means -25 is equal or equivalent to -25.

Therefore, the correct option is A.

Note: If the given expression is $\sqrt{-25}$, then

$\sqrt{-25}=\sqrt{25}\sqrt{-1}$        $[\because \sqrt{ab}=\sqrt{a}\sqrt {b}]$

$\sqrt{-25}=5i$             $[\because \sqrt{-1}=i]$

Then the correct option is B.

Answer 2

Answer:5i

Step-by-step explanation: