mathpi.netIn this class, we will find the square of -21. Also, we have Square Calculator in case you would like to find the square of a different number. Then we have a detailed step by step solution to find the square of given number -21.
Answer
The square of -21 is 441.
\({(-21)}^2=441\)
Inputs
Step by Step Solution to Find the Square of -21
Given:
n = -21
We have to find \({(-21)}^2\).
Finding Square...
The formula to find the square of a number n is:
\(n^2 = n\times n\)
Substitute
Substituting \(n=-21\) in the above formula
\({(-21)}^2 = (-21)\times (-21)\)
\({(-21)}^2 = 441\)
Result
Therefore, the square of -21 is
\({(-21)}^2 = 441\).
Squares of Nearby Numbers
| n2 = ? | Step-by-step Solution |
|---|---|
| -262 = 676 | Square of -26 |
| -252 = 625 | Square of -25 |
| -242 = 576 | Square of -24 |
| -232 = 529 | Square of -23 |
| -222 = 484 | Square of -22 |
| -212 = 441 | Square of -21 |
| -202 = 400 | Square of -20 |
| -192 = 361 | Square of -19 |
| -182 = 324 | Square of -18 |
| -172 = 289 | Square of -17 |
| -162 = 256 | Square of -16 |
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