Question

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a)√144-³√64 : [(-3)²+(-1)³]

b)(3×√36-4׳√125):[(³√8)³-√4]

c)(³√27+³√0,0027):1,1

Zad2

a)√1/125 -(√⅕)³

b)(√⅓)² ×√½₅

c)(³√4)³+∛125: (-5)

d)(-2)×(√5)²+√1

e)-(³√7)³+(∛23)³

f)(√17)²-(√24)²

Answer 1

a)√144-³√64 : [(-3)²+(-1)³] = 12-4 : [9-1] = 12-4:8 = 12-1/2 = 11 1/2

 

b)(3×√36-4׳√125):[(³√8)³-√4] = (3 * 6-4*5):[8-2] = (18-20):6 = -2:6 = -1/3

 

c)(³√27+³√0,027):1,1 = (3+0,3):1,1 = 3,3:1,1 = 3

 

 

Zad2

a)√1/125 -√1/125 = 0

 

b)(√⅓)² ×√½₅ =1/3 x 1/5 = 1/15

 

c)(³√4)³+∛125: (-5) = 4+5:(-5) = 4-1 = 3

 

d)(-2)×(√5)²+√1 = -2 * 5+1 = -10+1 = -9

 

e)-(³√7)³+(∛23)³ = -7+23 = 16

 

f)(√17)²-(√24)² = 17-24 = -7

 

 

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Answer 2

a) ...=12-4:(9-1)=12-4:8=12-0,5=11,5

b)...=3*6-4*5:(8-2)=18-20:6=18-3 i 1/3=14 i 2/3

c)...=(3+0,3):1,1=2,7:1,1=27:11=2 i 5/11

zad.2

 

a)...=1/5-1/8=8/40-5/40=3/40

b)...=1/9*1/21=1/189

c)...=4+5:(-5)=4+(-1)=3

d)...=-2*5+1=-10+1=-9

e)...=7+23=30

f)...=17-24=-9