(-2a²b)³+8(a²)²·(-a)²·(-b)²
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![(-2a²b)³+8(a²)²·(-a)²·(-b)²](/uploads/image/z/342848-56-8.jpg?t=%28-2a%26%23178%3Bb%29%26%23179%3B%2B8%28a%26%23178%3B%29%26%23178%3B%C2%B7%28-a%29%26%23178%3B%C2%B7%28-b%29%26%23178%3B)
(-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)