ex 24)scoateti factoorul sub radical a[tex] \sqrt{32a ^{3} b ^{10} } [/tex]) unde a>0,b≤0: b)[tex] \sqrt{27(a-b) ^{5} } ,[/tex] unde a>b c)[tex] \sqrt{-8(a-3) ^{3} } [/tex], unde a <3 d)[tex] \sqrt{(x-2) ^{3}(5-x) ^{5} },[/tex] unde 2<x<5
15√15/15=√15 b) (5√5-5)/10=(√5-1)/2 c) (3-√3)(3√2+√6)/(18-6)=(9√2-3√6+3√6-3√2)/12=6√2/12=√2/2 d) (6√2+4√3+2√5)/(9√2+6√3+4√3)=2(3√2+2√3+√5)/(13√2+6√3)= 2(3√2+2√3+√5)(13√2-6√3)/(338-108)=2(78+26√6+13√10-18√6-36-6√15)/230= (8√6+13√10-6√15+42)/115
a) 4ab^5√2a b) 3(a-b)²√3(a-b) c) 2(a-2)√-2(a-3) d) (x-2)(5-x)²√(x-2)(5-x)
