Question

wyznacz liczbe c , majac dany pierwiastek rownania

d)

3(4-c) 3(2x-3)

---------- + 3(3x+2) = ---------------- x= ∛-1 to pierwiastek szescienny z minus 1

4 2

fast daje naj

Answer 1

(12-3c)/4+9x+6=(6x-9)/2

12/4 - 3c/4 +9x+6 = 6x/2 - 9/2

3 - 3/4 c +9x +6 = 3x - 4,5

 

13,5 + 6x = 3/4 c

13,5-6 = 3/4c

7.5 = 3/4c

c = 10