Question

simplify

3√5+√20-√45

Answer 1

[AI-generated answer — Bot GPT 3.5]

To simplify this expression, we first have to evaluate the square roots:

√20 = √(4 * 5) = 2√5
√45 = √(9 * 5) = 3√5

Now we can substitute these values back into the original expression:

3√5 + 2√5 - 3√5 = 2√5

So the simplified expression is 2√5.