Question

Разложи на множители y^3−y^2k−yk^2+k^3 ^ это степень

Answer 1

y³-y²k -yk²+k³ = (y³-y²k) - (yk²-k³)= y²(y-k) - k²(y-k) =
= (y-k) (y²-k²) = (y-k)(y-k)(y+k) = (y-k)²(y+k)