b) 5x^4y^3+1/2x^3y^4-2/3x^2y^5-xy^6):5/6xy^2
Giải thích
b) 5x4y3+12x3y4−23x2y5−xy6:56xy2
=5x4y3:56xy2+12x3y4:56xy2−23x2y5:56xy2−xy6:56xy2
=6x3y+35x2y2−45xy3−65y4.
b) 5x4y3+12x3y4−23x2y5−xy6:56xy2
=5x4y3:56xy2+12x3y4:56xy2−23x2y5:56xy2−xy6:56xy2
=6x3y+35x2y2−45xy3−65y4.