(-2a²b)³+8(a²)²·(-a)²·(-b)²
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(-2a²b)³+8(a²)²·(-a)²·(-b)²
(-2a²b)³+8(a²)²·(-a)²·(-b)²
(-2a²b)³+8(a²)²·(-a)²·(-b)²
=-8a的6次方b³+8a的4次方×a²×b²
=-8a的6次方b³+8a的6次方b²
(-2a²b)³+8(a²)²·(-a)²·(-b)²
=-8a^6b^3+8a^6b^2
(-2a²b)³+8(a²)²·(-a)²·(-b)²
=-8a^6b^9+8a^4×a²×b²
=-8a^6b^9+8a^6b²
=8a^6b²(1-b^7)