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How would you solve a problem like 12=sqrt(16x)... because I won't always have access to this calculater and I can't seem to be able to figure out how the calculater did it?
Also is there a video I can watch that will show me how to do it?
 Mar 27, 2014

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 #1
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notsomathpro:

How would you solve a problem like 12=sqrt(16x)... because I won't always have access to this calculater and I can't seem to be able to figure out how the calculater did it?
Also is there a video I can watch that will show me how to do it?



Square both sides of the equation to get 12*12 = 16x (because squaring the square root of something just gives you that something). Now divide both sides by 16 to get x on its own.
12*12/16 = x, so x = 9
 Mar 27, 2014
 #2
avatar+19 
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Thanks, I had a huge brain f**t which seems to be the only intelligence I can get out of my brain.
 Mar 27, 2014

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