Помогите разложить на множители:
1)x^6 - 9x^4 + x^2 - 9
2) x^3 - x -kx^2 + k
3) x^4 + 64
4) m^2 - 8mn + 15n^2
5)1/13 m ^4 - 1/13m^2
1)x^6 - 9x^4 + x^2 - 9
2) x^3 - x -kx^2 + k
3) x^4 + 64
4) m^2 - 8mn + 15n^2
5)1/13 m ^4 - 1/13m^2
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Answers & Comments
2) x(x²-1)-k(x²-1)=(x-k)(x-1)(x+1)
3) x⁴+64=
4) m(m-8n)-n(8m-15n)=(m-n)(m-8n)(8m-15n)
5)⅓m²(m²-1)=⅓m²(m-1)(m+1)