Question

va rog autatima dau coroana!!!!
aduceti expresia la forma cea mai simpla
a)√18-3√32+2√32-√72=
b)0,4√12-0,9√27+1,3√75=
c)-2√80+√320-4√20+√45=
d)√0,8+√3,2+√5-10√7,2=

Answer 1

a)√18-3√32+2√32-√72= √18- 5√32-√72
 

Answer 2

a) 3√2-√32-6√2= -3√2-4√2= -7√2
b) 0.8√3-2.7√3+6.5√3= 4.6√3
c) -8√5+8√5-8√5+3√5= -5√5
d) 2√0.2+4√0.2+√5-60√0.2= √5-54√0.2