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√4*3=2√3,√4*5=2√5,√9*2==3√2,√16*5=4√5,√16*2=4√2,√9*3=3√3,√25*3=5√3,√9*11=3√11
b)
√1/9*13=1/3√13,√1/16*11=1/4√11,√1/16*19=1/4√19,√16/100*6=4/10√6,√4/49*3=2/7√3,√1/4*3=1/2√3,√1/9*5=1/3√5,√49/122*2=7/11√2
2.
a)√18,√48,√20,√50,√7a^2,√3b^2,√5x^2
b) ∛24,∛135,∛8/3,∛16,∛9a^3b^3x,∛8x^3,∛a^7b^4c,∛1/3x^7y^10z^4
3.
a 10*√5 10√5 2√5
-----------= ----------= -------
3√5*√5 15 3
b)
√3 *√5 √15
-----------= ----------
√5 *√5 5
c)
√3+√ 2)*√2 √6+2
----------- = ------------------
√ 2 2
4.
a)
a√3=√75
a√3=5√3 /√3
a=5
b)
z∛3=∛192
z∛3=∛64*3
z∛3=4*∛3 /∛3
z=4
c)
√44-√99=4√11 /√11
√4-√9=a
2-3=a
a=-1
a)
b)
2.
a)
b)
3.
a)
b) = * =
c) * =
4.
a)
b)
c)