-2分之1(4xy-8x²;)+3分之1(xy-6x²;y²;)化簡.剛剛那題謝謝你了.

-2分之1(4xy-8x²;)+3分之1(xy-6x²;y²;)化簡.剛剛那題謝謝你了.

(-1/2)(4xy-8x²;)+(1/3)(xy-6x²;y²;)
=-2xy+4x²;+xy/3-2x²;y²;
=-5xy/3+4x²;-2x²;y²;