帮我解几道分解因式的运用公式法的题 要求过程.①16(a-b)² - 81(a+b)² = ②2(a+b)² - 8(a-b)² =③(2a-3b)² - 4c² =
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![帮我解几道分解因式的运用公式法的题 要求过程.①16(a-b)² - 81(a+b)² = ②2(a+b)² - 8(a-b)² =③(2a-3b)² - 4c² =](/uploads/image/z/6022896-24-6.jpg?t=%E5%B8%AE%E6%88%91%E8%A7%A3%E5%87%A0%E9%81%93%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%E7%9A%84%E8%BF%90%E7%94%A8%E5%85%AC%E5%BC%8F%E6%B3%95%E7%9A%84%E9%A2%98+%E8%A6%81%E6%B1%82%E8%BF%87%E7%A8%8B.%E2%91%A016%EF%BC%88a-b%EF%BC%89%26%23178%3B+-+81%EF%BC%88a%2Bb%EF%BC%89%26%23178%3B+%3D+%E2%91%A12%EF%BC%88a%2Bb%EF%BC%89%26%23178%3B++-+8%EF%BC%88a-b%EF%BC%89%26%23178%3B+%3D%E2%91%A2%EF%BC%882a-3b%EF%BC%89%26%23178%3B+-+4c%26%23178%3B+%3D)
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