Question

Rozwiąż rownanie :

x3 - pierw2x2 - 9x + 3 pierw18

Answer 1

x³-√2x²-9x+3√18=0

x³-√2x²-9x+9√2=0

x²(x-√2)-9(x-√2)=0

(x-√2)(x²-9)=0

(x-√2)(x-3)(x+3)=0

x=√2 v x=3 v x=-3