(x^2+5x)^2-2(x^2+5x)-24 因式分解不好意思,突然忘了,麻烦大家.谢谢!
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![(x^2+5x)^2-2(x^2+5x)-24 因式分解不好意思,突然忘了,麻烦大家.谢谢!](/uploads/image/z/251304-24-4.jpg?t=%28x%5E2%2B5x%29%5E2-2%28x%5E2%2B5x%29-24+%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%E4%B8%8D%E5%A5%BD%E6%84%8F%E6%80%9D%2C%E7%AA%81%E7%84%B6%E5%BF%98%E4%BA%86%2C%E9%BA%BB%E7%83%A6%E5%A4%A7%E5%AE%B6.%E8%B0%A2%E8%B0%A2%21)
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(x^2+5x)^2-2(x^2+5x)-24 因式分解不好意思,突然忘了,麻烦大家.谢谢!
(x^2+5x)^2-2(x^2+5x)-24 因式分解
不好意思,突然忘了,麻烦大家.谢谢!
(x^2+5x)^2-2(x^2+5x)-24 因式分解不好意思,突然忘了,麻烦大家.谢谢!
将(x²+5x)看作一个整体分解即可
令a=x^2+5x
所以(x^2+5x)^2-2(x^2+5x)-24
=a^2-2a-24
=(a-6)(a+4)
=(x^2+5x-6)(x^2+5x+4)
=(x-1)(x+6)(x+1)(x+4)
(x^2+5x)^2-2(x^2+5x)-24
=[(x^2+5x)-6][(x^2+5x)+4]
=(x^2+5x-6)(x^2+5x+4)
=(x+6)(x-1)(x+1)(x+4)
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