Question

17-Calcule!


18-Calcule!

Answer 1

17)

a) √25+√81 = 5+9 = 14

b) ³√64+³√-8 = 4+(-2) = 4-2 = +2

c) 3√25-2√4-9³√8 =

3×5-2×2-9×2

15-4-18

15-22

-7

18)

a) 3+√16-√25 = 3+4-5 = 7-5 = +2

b) 5√49-√121 = 5×9-11 = 45-11 = +34

c) √1,21-√0,01 = 1,1-0,1 = 1

d) 5√9-3³√8 = 5×3-3×2 = 15-6 = +9

e) √21×4-3 = √81 = 9

f) √100-35 = √64 = 8

Espero ter ajudado ✨

27/09