Question

M-2xyz+xy³-x²+5=xy³+5xyz-4x²+6-x³y

Answer 1

Ta có: \(M-2xyz+xy^3-x^2+5=xy^3+5xyz-4x^2+6-x^3y\)

\(\Leftrightarrow M=xy^3+5xyz-4x^2+6-x^3y+2xyz-xy^3+x^2-5\)

\(\Leftrightarrow M=7xyz-3x^2-x^3y+1\)

Answer 2

`M-2xyz+xy^3-x^2+5=xy^3+5xyz-4x^2+6-x^3y`
`<=>M=xy^3+5xyz-4x^2+-x^3y+2xyz-xy^3+x^2-5`
`<=>M=-3x^2-x^3y+7xyz+1`

Answer 3

M = xy^3 + 5xyz -4x^2 +6 -x^3y+(-2xyz+xy^3-x^2+5)

M= xy^3+5xyz -4x^2 +6-X^3y+-2xyz+xy^3-x^2+5

M=(xy^3+xy^3)+(5xyz-2xyz)+(-4x^2-x^2)+(6+5)-x^3y

M= 2xy^3+3xyz+-5x^2+11-X^3y