Odpowiedź:
18.
a) = 4 * 3 = 12
b) = 2² * 2 = 8
c) = √7 * √7 * 3 = √49 * 3 = 7 * 3 = 21
d) = 2 * 5 * √3 * √3 = 10 * √9 = 10 * 3 = 30
e) = 2² * √5² / 5² = 4 * 5 / 25 = 20/25 = 4/5
f) = 2²/3² * √6² = 4/9 * 6 = 8/3 = 2 i 2/3
g) = (-0,1)² * √10² = 0,01 * 10 = 0,1
h) = (-3) * 2 * √15 * √15 = (-6) * 15 = (-90)
19.
a) = 1³/2³ * 12 = 1/8 * 12 = 1/2 * 3 = 3/2 = 1 i 1/2
b) = (-2)³ * 1/4 = (-8) * 1/4 = (-2)
c) = (-10)³ * (-0,1) = (-1000) * (-0,1) = 100
d) = 3 * 2 * ³√7 * ³√7 * ³√7 = 6 * ³√7*7*7 = 6 * ³√343 = 6 * 7 = 42
e) = 5 * 4 * ³√-6 * ³√-6 * ³√-6 = 20 * ³√-6*-6*-6 = 20 * ³√-216 = 20 * (-6) = (-120)
f) = (-7)² * ³√-2 * ³√-2 * ³√-2 = 49 * ³√-2*-2*-2 = 49 * ³√-8 = 49 * (-2) = (-98)
