To simplify the radical expression 2√5 + 2√5, we start by combining like terms.
Both terms in the expression are identical: 2√5. When we add them together, we can simply add the coefficients (the numbers in front of the radicals).
Calculating this gives us:
- 2 + 2 = 4
So, we have:
2√5 + 2√5 = 4√5
This is the simplest form of the given expression.