数学作业解答 7题7分,写几道加积分
(-1.25)*8处以1.25*(-8)=(3a3b+4/1ab2)-(4/3ab2+a2b)=(-3)2*(-3/2-9/5)=(-2)2-8/1处以(2/1)3+(-...
(-1.25)*8处以1.25*(-8)=
(3a3b+4/1ab2)-(4/3ab2+a2b)=
(-3)2*(-3/2-9/5)=
(-2)2-8/1处以(2/1)3+(-1)2010
p2-3pq+6-8p2+pq=
9x-6x2-3(x+2x2)=
(3x2-2y2)-2(3x+y2)-(5x2-y2)= 展开
(3a3b+4/1ab2)-(4/3ab2+a2b)=
(-3)2*(-3/2-9/5)=
(-2)2-8/1处以(2/1)3+(-1)2010
p2-3pq+6-8p2+pq=
9x-6x2-3(x+2x2)=
(3x2-2y2)-2(3x+y2)-(5x2-y2)= 展开
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