Question

simplyify: (x-y)*3-(x*3-y*3)​

Answer 1

Answer:

x3−3x2y+3xy2−y3. Explanation: (x−y)(x−y).=x2−xy−xy+y2. = x2−2xy+y2. = (x2−2xy+y2)(x−y). = x3−x2y−2x2y+2xy2+xy2−y3. = x3−3x2y+3xy2−y3.

Step-by-step explanation:

Answer 2

Answer:

$3xy^2 - 3x^2y$.............is the required answer :)

Step-by-step explanation:

$=(x-y)^3-(x^3-y^3)\\\\\\(x-y)^3 = x^3-3x^2y+3xy^2-y^3\\\\\\= (x^3-3x^2y+3xy^2-y^3)-(x^3-y^3)\\\\\\=x^3-3x^2y+3xy^2-y^3-x^3+y^3\\\\\\Rearranged~with~similar~co-efficient\\\\\\= x^3 - x^3 -3x^2y+3xy^2-y^3+y^3\\\\\\= -3x^2y+3xy^2\\\\\\= 3xy^2 - 3x^2y..........is~the~required~answer$

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