Question

A) (√20+√18):√5-2-√18/5-1
b) (8√48+10√3-2√27):√3
c) (20√6-5√8):(2√2)+20-10√3
d) 5√3·(√3-5√12)-√5·(5√20-3)+185

Answer 1

Explicație pas cu pas:

a) (2rad5 + 3rad2)÷rad5 -2 - (3rad2)/rad5 -1

2 + 3rad10 -3 -3 rad10

=2-3= –1

b) =8rad16+10-2rad9

=8×4+10-2×3

=42-6

=36

c) =10rad3-(5/2)×rad4+20-10rad3

=20-5÷2×2

=20-5

=15

d)=5rad9-25rad36-5rad100+3rad5+185

=5×3-25×6-5×10+3rad5+185

=15-150-50+185+3rad5

=200-200+3rad5

=3rad5