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can someone please answer this?
1. the square root of ( 4 - x ) plus the square root of ( x + 4 )
2. square root of x squared minus 2x minus 3 plus the square root of x minus 3.
3. square root of x squared minus 1, plus square root of ( x + 1 )
4. x squared minus 16 plus square root of (x + 16)
thanks in advance! mwah!
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Typically what you want to do is square the whole thing, then when you're done simplifying, just take a square root.
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."
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can someone please answer this?
1. the square root of ( 4 - x ) plus the square root of ( x + 4 )
2. square root of x squared minus 2x minus 3 plus the square root of x minus 3.
3. square root of x squared minus 1, plus square root of ( x + 1 )
4. x squared minus 16 plus square root of (x + 16)thanks in advance! mwah!
In general there is no simple way of adding square roots. Ricky showed an interesting way of combining the first into a single square root but I wouldn't consider it "simpler" than the original.
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