Question

Oblicz liczbę x
√3x=2/3
∛2x-4=-6
√x/8=3/4

Answer 1

Pierw(3x) = 2/3
(2/3)^2 = 4/9
3x = 4/9 
x = 4/27
bo 
pierw (3*4/27) = pierw (4/9) = 2/3

pierw3s(2x) - 4 = -6 
pierw3s(2x) = -6 + 4
pierw3s(2x) = -2 
-2^3 = 2x
-8 = 2x
x = -4

pierw(x/8) = 3/4
(3/4)^2 = x/8
9/16 = x/8
x = 9*8/16
x = 9/2

bo pierw((9/2)/8) = pierw (9/2*1/8)= pierw (9/16) = 3/4