Răspuns:
Explicație pas cu pas:
a) (2√32 - √8 - √18)·(√27-2√3) =
= (2·4√2 - 2√2 - 3√2)·(3√3-2√3) =
= (3√2)·√3 = 3√6
b) (√45+3√5-√80)·(√200+√72-4√18) =
= (3√5+3√5-4√5)·(10√2+6√2-4·3√2) =
= 2√5 ·4√2 = 8√10
c) (√2+√3)·(2√2+√3)-7 =
= 2·2+√6+2√6+3-7 = 3√6
d) 3√10 +(2√2+5)(√2-2√5) =
= 3√10+(4-4√10+√10-10) = -6
