Question

√45-^2√20+4√5 simplify plzzzzz urgent plssss

Answer 1

Answer:

3√5

Step-by-step explanation:

√45-2√20+4√5

√5×3×3-2√2×2×5+4√5

3√5-2×2√5+4√5

3√5-4√5+4√5

3√5+0

3√5