SOLUTION: √16 * 10^4 - 2 * 10^2 I would like work shown and some explanation on how to get the answer

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Question 1013801: √16 * 10^4 - 2 * 10^2
I would like work shown and some explanation on how to get the answer
Answer by ikleyn(52777) About Me  (Show Source):
You can put this solution on YOUR website!
.
sqrt%2816+%2A+10%5E4%29+-+2+%2A+10%5E2 is it you are asking about? 

If so, then 16%2A10%5E4 = %284%2A10%5E2%29%5E2.     (is it clear?)

Next, sqrt%2816%2A10%5E4%29 = sqrt%28%284%2A10%5E2%29%5E2%29 = 4%2A10%5E2.

Therefore, 

sqrt%2816+%2A+10%5E4%29+-+2+%2A+10%5E2 = 4%2A10%5E2 - 2%2A10%5E2 = 2%2A10%5E2.

Next time write your formulas in a more readable way please.