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## Kris5 Group Title how do i subtract 2 radical 15 - 5 radical 2? 2 years ago 2 years ago

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1. phi

depends what you are doing. You can write it as $2\sqrt{15}-5\sqrt{2}$ which is as simple as you can get it. However, you could use a calculator and change it to an (approximate) decimal number.

2. Kris5

Ohh alright, then I'm probably doing something wrong on my math problem :/