急 写出满足X²+4X+M=(3X-8)×(X+2)-(X-5)×(X+5),的代数式M
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![急 写出满足X²+4X+M=(3X-8)×(X+2)-(X-5)×(X+5),的代数式M](/uploads/image/z/1628321-41-1.jpg?t=%E6%80%A5+%E5%86%99%E5%87%BA%E6%BB%A1%E8%B6%B3X%26%23178%3B%2B4X%2BM%3D%EF%BC%883X-8%EF%BC%89%C3%97%EF%BC%88X%2B2%EF%BC%89-%EF%BC%88X-5%EF%BC%89%C3%97%EF%BC%88X%2B5%EF%BC%89%2C%E7%9A%84%E4%BB%A3%E6%95%B0%E5%BC%8FM)
急 写出满足X²+4X+M=(3X-8)×(X+2)-(X-5)×(X+5),的代数式M
急 写出满足X²+4X+M=(3X-8)×(X+2)-(X-5)×(X+5),的代数式M
急 写出满足X²+4X+M=(3X-8)×(X+2)-(X-5)×(X+5),的代数式M
X²+4X+M=(3X-8)×(X+2)-(X-5)×(X+5)
X²+4X+M=(3X²+2X-16)-(X²-25)
M=X²-2x+9