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b) 2(2√2-3√3) = 4√2-6√3
c) 4(√11+3√11)-5√11=4√11+12√11-5√11=16√11-5√11=11√11
d) 2(√3+5)-3(√5-√3)= 2√3+10-3√5+3√3=5√3-3√5+10
e) 2(√2-5√5)-5√2+2√5= 2√2-10√5-5√2+2√5= -3√2-8√5
f) √2(√3+√2)= √6+2
b)
c)
d)
e)
f)
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