(a²+b²-c²)-4a²b²因式分解 是(a²+b²-c²)²-4a²b²打错了
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![(a²+b²-c²)-4a²b²因式分解 是(a²+b²-c²)²-4a²b²打错了](/uploads/image/z/3755365-61-5.jpg?t=%28a%26%23178%3B%2Bb%26%23178%3B-c%26%23178%3B%29-4a%26%23178%3Bb%26%23178%3B%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3+%E6%98%AF%28a%26%23178%3B%2Bb%26%23178%3B-c%26%23178%3B%29%26%23178%3B-4a%26%23178%3Bb%26%23178%3B%E6%89%93%E9%94%99%E4%BA%86)
(a²+b²-c²)-4a²b²因式分解 是(a²+b²-c²)²-4a²b²打错了
(a²+b²-c²)-4a²b²
因式分解
是(a²+b²-c²)²-4a²b²
打错了
(a²+b²-c²)-4a²b²因式分解 是(a²+b²-c²)²-4a²b²打错了
(a²+b²-c²)²-4a²b²
=(a²+b²-c²-2ab)(a²+b²-c²+2ab)
=[(a-b)²-c²][(a+b)²-c²]
=(a-b+c)(a-b-c)(a+b-c)(a+b+c)