Question

add and subtract x-3xy+y^2 and 2x-3y^2​

Answer 1

Addition :

= x-3xy+y² + 2x-3y²

= 3x -3xy-2y²

Subtraction :

= x-3xy+y² - (2x-3y²)

= x-3xy+y² - 2x+3y²

= -x -3xy+4y²

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Answer 2

EXPLANATION

ADD

x - 3xy + y^2 + 2x - 3y^2

= 3x - 3xy - 2y^2

SUBTRACT

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

= x - 3xy + y^2 - 2x + 3y^2

= - x - 3xy + 4y^2

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