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Is this equation true or false? Why? �ãa+�ãb=�ãa+b

Okay radicals are killing me. Please explain this to me

3 answers

I don't know what your symbols are.
Sorry for whatever reasons my sq root symbols didn't paste here. The problem is sq rt a + sq rt b = sq rt a+b. I think this is true, but I'm not sure why.
I don't think it's right.

If a = 16 and b = 25, the sums of their square roots = 9
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