Dane sa wielomiany W(x)=2x do 3-7x do 2 -5x +4 P(x) =2x-1 oblicz a)W(x)+3razy P(x) b)W(x)-P(x)

W(x) = 2 x^3 - 7 x^2 - 5 x + 4 P(x) = 2x - 1 zatem a) W(x) + 3 P(x) = 2 x^3 - 7 x^2 - 5 x + 4 + 3*(2x - 1) = = 2 x^3 - 7 x^2 - 5 x + 4 + 6 x - 3 = 2 x^3 - 7 x^2 + x + 1 ================================================= b) W(x) - P(x) = 2 x^3 - 7 x^2 - 5 x + 4 - ( 2x - 1 ) = = 2 x^3 - 7 x^2 - 5 x+ 4 - 2 x + 1 = = 2 x^3 - 7 x^2 - 7 x  + 5 ==========================