-2 √5 + 3 √5 = (-2 + 3) √5 = 1 √5 = √5
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2 radical 30
radical 3 or 6
-3+-2=-5. In word form: negative three plus negative two equals negative five.
Here is an example, radical 20 plus radical 5. Now radical 20 is 2(radical 5) so we can add radical 5 and 2 radical 5 and we have 3 radical 5.
negative 5