1.x^n-13x^n-1+36x^n-22.x^2y^2+13xy+363.X^2+15xy+36y^24.(x+y)^2-9(x+y)-365.(a^2+36)^2-8(a^2+3b)-206.12x^2-5x-37.36a^2-15a+18.4x^3-16xy-15y^2..TAT
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![1.x^n-13x^n-1+36x^n-22.x^2y^2+13xy+363.X^2+15xy+36y^24.(x+y)^2-9(x+y)-365.(a^2+36)^2-8(a^2+3b)-206.12x^2-5x-37.36a^2-15a+18.4x^3-16xy-15y^2..TAT](/uploads/image/z/1850741-53-1.jpg?t=1.x%5En-13x%5En-1%2B36x%5En-22.x%5E2y%5E2%2B13xy%2B363.X%5E2%2B15xy%2B36y%5E24.%EF%BC%88x%2By%EF%BC%89%5E2-9%28x%2By%29-365.%EF%BC%88a%5E2%2B36%EF%BC%89%5E2-8%28a%5E2%2B3b%29-206.12x%5E2-5x-37.36a%5E2-15a%2B18.4x%5E3-16xy-15y%5E2..TAT)
1.x^n-13x^n-1+36x^n-22.x^2y^2+13xy+363.X^2+15xy+36y^24.(x+y)^2-9(x+y)-365.(a^2+36)^2-8(a^2+3b)-206.12x^2-5x-37.36a^2-15a+18.4x^3-16xy-15y^2..TAT
1.x^n-13x^n-1+36x^n-2
2.x^2y^2+13xy+36
3.X^2+15xy+36y^2
4.(x+y)^2-9(x+y)-36
5.(a^2+36)^2-8(a^2+3b)-20
6.12x^2-5x-3
7.36a^2-15a+1
8.4x^3-16xy-15y^2
..TAT
1.x^n-13x^n-1+36x^n-22.x^2y^2+13xy+363.X^2+15xy+36y^24.(x+y)^2-9(x+y)-365.(a^2+36)^2-8(a^2+3b)-206.12x^2-5x-37.36a^2-15a+18.4x^3-16xy-15y^2..TAT
1.x^n-13x^n-1+36x^n-2
=[x^(n-2)]·(x²-13x+36)
=[x^(n-2)](x-4)(x-9)
2.x^2y^2+13xy+36
=(xy+4)(xy+9)
3.X^2+15xy+36y^2
=(x+3y)(x+12y)
4.(x+y)^2-9(x+y)-36
=(x+y-12)(x+y+3)
5.(a^2+36)^2-8(a^2+3b)-20 a^2+36应该是a^2+3b吧,
=(a²+3b-10)(a²+3b+2)
6.12x^2-5x-3
=(3x+1)(4x-3)
7.36a^2-15a+1
=(3a-1)(12a-1)
8.4x^3-16xy-15y^2
题目有错吧,
检查一下,欢迎向我追问.