SOLUTION: how shall i find the square root of 289
without using calculator?
Algebra.Com
Question 1018059: how shall i find the square root of 289
without using calculator?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
What squares do you know or can you find near 289?
Look at squares between and .
Maybe try
One factorization of 64 is and another is . This last one looks like it can work.
Either x=2 OR x=-32.
The number can be .
Try checking the square of 17...
.
x=-32 may also work.
and you easily find .
.
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