Question

(х^3+2х^2у-5ху^2-3у^3)(5х-4у)

Answer 1

(x^3+2x^2y-5xy^2-3y^3)(5x-4y)

=x^3(5x-4y)+2x^2y(5x-4y)-5xy^2(5x-4y)-3y^3(5x-4y)

=5x^4-4x^3y+10x^2y^2-20x^2y^2+8xy^3-20xy^3-12y^4

=25x^4-40x^3y-10x^2y^3-12y^4

Answer 2

Объяснение:

(х³+2х²у-5ху²-3у³)(5х-4у)=5х⁴+10х³у-25х²у²-15ху³-4х³у²+20ху³+12у⁴=

=5х⁴+6х³у-33х²у²+5ху³+12у⁴