Question

(9x²-7x³+3y²)-(6x²-3x³+5y²) ai giải hộ mik ik

Answer 1

`( 9x^2 - 7x^3 + 3y^2 ) - ( 6x^2 - 3x^3 + 5y^2 )`

`= 9x^2 - 7x^3 + 3y^2 - 6x^2 + 3x^3 - 5y^2`

`= ( 9x^2 - 6x^2 ) - ( 7x^3 - 3x^3 ) + ( 3y^2 - 5y^2 )`

`= 3x^2 - 4x^3 - 2y^2`

Answer 2

<=> \(9x^2-7x^3+3y^2-6x^2+3x^3-5y^2\)

<=> \(3x^2-4x^3-2y^2\)