Question

Ребят, помогите!!!!!!

Answer 1

а)
$sqrt{3}(2 sqrt{2^2*3}+ sqrt{4^2*3} = sqrt{3} (4 sqrt{3}+4 sqrt{3} )= sqrt{3}*8 sqrt{3}=8*3=24$
б)
$=a-3 sqrt{a}*b+3 sqrt{a} *b-9b^2=a-9b^2$
в)
$=( sqrt{5}- sqrt{2})( sqrt{5}- sqrt{2})+ sqrt{2^2*10}=5+2-2 sqrt{10}+2 sqrt{10}=7$