Разложите на множители:
а) y^4-x^2
б) y^6-9
ж) x^10-25
з) 9-b^4
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Answers & Comments
B)= (y^3-3)( y^3+3)
C)=(x^5-5)(x^5+5)
D)=(3-b^2)(3+b^2)