Square Root of a Negative Number - Examples, Exercises and Solutions

Choose the largest value

Let's calculate the numerical value of each of the roots in the given options:

$\sqrt{25}=5\\ \sqrt{16}=4\\ \sqrt{9}=3\\$and it's clear that:

5>4>3>1 Therefore, the correct answer is option A

$\sqrt{25}$

$\sqrt{441}=$

The root of 441 is 21.

$21\times21=$

$21\times20+21=$

$420+21=441$

$21$

$(\sqrt{380.25}-\frac{1}{2})^2-11=$

According to the order of operations, we'll first solve the expression in parentheses:

$(\sqrt{380.25}-\frac{1}{2})=(19.5-\frac{1}{2})=(19)$

In the next step, we'll solve the exponentiation, and finally subtract:

$(19)^2-11=(19\times19)-11=361-11=350$

350

$\sqrt{49}=$

7

$\sqrt{36}=$

6

$\sqrt{64}=$

8

Solve the following exercise:

$\sqrt{x^2}=$

$x$

$\sqrt{x}=1$

1

$\sqrt{x}=2$

4

$\sqrt{x}=6$

36

$\sqrt{4}=$

2

$\sqrt{9}=$

3

$\sqrt{16}=$

4

$\sqrt{36}=$

6

$\sqrt{64}=$

8