👤

Efectuati :
1+2√3-5
√5-3+2√5
2√7-1-2√7
-8-5√11+8
DAU COROANA !!!!! Multumesc!


Răspuns :

1+2√3-5=
=2√3-5+1
=2√3-4
=2(
√3-2)

√5-3+2√5=

=2√5+√5-3
=3
√5-3
=3(
√5-1)

2√7-1-2√7=
=2√7-2√7-1
= - 1

-8-5√11+8=
= - 5√11+8-8
=
- 5√11