Question

1) Simplify the surds. 8√5 +√20​

Answer 1

Answer:

10√5

Step-by-step explanation:

$8 \sqrt{5} + \sqrt{20}$

$= 8 \sqrt{5} + 2 \sqrt{5}$

$= \sqrt{5} (8 + 2)$

$= 10 \sqrt{5}$

Answer 2

Answer:10√5

=8√5+√20

=8√5+2√5

=(8+2)√5

=10√5