Toán Lớp 8: Nhân đa thức sau:
a,-2xyz(x²y -3xz²-2y³z)
b,(a²b-5ab+ab²+2b³)3ab²
c,2/7a(14a-35b+7/4ab)
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Toán Lớp 8: Nhân đa thức sau:
a,-2xyz(x²y -3xz²-2y³z)
b,(a²b-5ab+ab²+2b³)3ab²
c,2/7a(14a-35b+7/4ab)
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