Question

Restrangeti,dupa ce ati scos factorii de sub radical
1. 3√48 - 4√18 - 5√108 + 6√72
2. 2√160 - 3 √90 + 5√40
3. 5√6 + 4√24 + 6√54 - 2√150
4.

Answer 1

1. 3√48 - 4√18 - 5√108 + 6√72=
=12√3 -12√2 - 30√3 + 36√2=
=24√2 - 18√3

2. 2√160 - 3 √90 + 5√40=
=8√10 - 9 √10 + 10√10=
=9√10

 3. 5√6 + 4√24 + 6√54 - 2√150=
= 5√6 + 8√6 + 18√6 - 10√6=
= 21√6