Thu gọn các đơn thức:
Giải thích
a, 2x2y2.14xy3.(−3xy) =2.14.−3.x2.x.x.y2.y3.y= −32x4y6b, (–2x3y)2.xy2.12y5 =4x6y2.xy2.12y5=4.12.x6.x.y2.y2.y5= 2x7y9
a, 2x2y2.14xy3.(−3xy) =2.14.−3.x2.x.x.y2.y3.y= −32x4y6b, (–2x3y)2.xy2.12y5 =4x6y2.xy2.12y5=4.12.x6.x.y2.y2.y5= 2x7y9