Can some one teache me the steps to do sqaure root i cant understand it
1 answer:
Answer:
It's easy.
Step-by-step explanation:
The square root of something is just the reverse of some squared.
For example, if you do 3 to the power of 2 (3^2) you get 9. now if you reverse that you would do square root. would be 3. Think of it like multiplication and division. If you do 10*5 you get 50. All you have to do is reverse it after that 50/5 = 10. See.
The only difference it square(2) root and squared(2) are only with the number 2. Meaning you can't do 3 to the power of 3 (3^3) and expect to square root it to get the reverse. For example, 3 to the power of 3 (3^3) is 27. But the square root of 27 is NOT 3, it is 5.2
You get it?
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Answer:
Step 2
Step-by-step explanation:
Given
Step 1:
Step 2:
Step 3:
Step 4:
Required
Where did Viet made an error?
The step 1 indicates the original question.
To get to step 2, we have to subtract 4 from both sides of the equation.
However, the above expression is different from Viet's evaluation.
<em>Hence, we can conclude that Viet made an error in step 2</em>