Question

simplifique as expressoes

2√5 + 10√5

9√3- 8√3+3√3

√10+243-2√27

√x + √y - 7√x - 3√x + 4√y

Answer 1

1) 12√5
2)4√3
3)√10+243-2√27
4)5√y - 9√x