摘要:计算(1)(3x 2y) 2 (一15 xy3)÷(一9x4y 2)
网址:http://m.1010jiajiao.com/timu_id_738379[举报]
计算(每小题4分,共16分)
(1)
(2)-22×5-(-3)×-5÷(-)
(3)4x2y-9xy2+7-4x2y+10xy2-4
(4)3(2x2-xy)-4(x2-xy+3)
网址:http://m.1010jiajiao.com/timu_id_738379[举报]
计算(每小题4分,共16分)
(1)
(2)-22×5-(-3)×-5÷(-)
(3)4x2y-9xy2+7-4x2y+10xy2-4
(4)3(2x2-xy)-4(x2-xy+3)