Question

We should be added to x² + 3x^2y + 3xy^2 to get x^3+x^3
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Answer 1

Answer:

$2(x^3)$ $-x^2 - 3x^2y - 3xy^2$

Step-by-step explanation:

let the answer be z

$x^2 + 3x^2y + 3xy^2$+z=$x^3+x^3$

z= -($x^2 + 3x^2y + 3xy^2$)+$2 (x^3)$

z=$2(x^3)$ $-x^2 - 3x^2y - 3xy^2$

Answer 2

Answer:

mark me as a brainlist

Step-by-step explanation:

x  +3  +3x  2  y+3xy  2  +y  3  +M=x 3 +y  3

⇒M=(x  3  +y  3  )−(x  3+3x  2 y+3xy  2  +y  3  )

⇒M=x  3  +y  3  −x 3  −3x  2  y−3xy  2  −y  3

Collecting like terms,

⇒M=x  3 −x  3  +y  3  −y  3  −3x  2  y−3xy  2

⇒M=−3x  2  y−3xy  2