Math, asked by Arjundas111, 11 months ago

plz help me solvev this!!!no.19

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Answered by subhash1452

1

x+y+z=0,
x+y=-z
(x+y)^3=(-z)^3
x^3+y^3+3×x^2×y+3×x×y^2=-z^3

Arjundas111: after this?

Arjundas111: plz be quick!

subhash1452: x^3+y^3+3x^2y+3XYZ^2=-z^3

subhash1452: x^3+y^3+3XYZ(x+y)=-z^3

Arjundas111: plz give me the full answer

Arjundas111: next!

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