Разложи на множители:
5а^3b^2-25ab^3
x^2-7x
25x^2-9
2a^2b^5-12ab^2+18a^5b^3
16x^2-9y^2
Срочно помогите
5а^3b^2-25ab^3
x^2-7x
25x^2-9
2a^2b^5-12ab^2+18a^5b^3
16x^2-9y^2
Срочно помогите
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Answers & Comments
x( x - 7 )
2) 25x^2-9
(5x - 3)^2
3) 16x^2-9y^2
(4x-3y)^2
2)=x(x-7)
3)=(5x-3)(5x+3)
4)=2ab^2(ab^3-6+9a^4b)
5)=(4x-3y)(4x+3y)