Question

(x-3)do kwadratu<2(x+3)(x-3)-1/3(-3x+18)-x do kwadratu

Answer 1

(x-3)do kwadratu<2(x+3)(x-3)-1/3(-3x+18)-x do kwadratu
x²-6x+9<2(x²-9)+x-6-x²
x²-6x+9-2x²+18-x+6+x²<0
-7x<-33 /-7
x>33/7