M
magicalgirl


Giúp tớ nhé các bạn
A=2x^2+5xy-3y^2+5x+y+2
B=x^4-x^3+5x^2-7x+6
C=2x^3-5x^2-5x-1
D=3x^2+2xy-y^2-10x+2y+3
A=2x^2+5xy-3y^2+5x+y+2
B=x^4-x^3+5x^2-7x+6
C=2x^3-5x^2-5x-1
D=3x^2+2xy-y^2-10x+2y+3