Ответ
3. 4x 12 - 12x = 0
4x * (x - 3) = 0
4x = 0 или x - 3 = 0
x = 0 или x = 3
2.1) 5a^2-20ab=5a(a-46) 2) 7x^3-14x^5-7x^3(1-2x^2)
3) 3a-3b+ax-bx=3(a-6)+x(a-6)=(3+x)(a-6)
) 3x(x^3-4x+6)=3x^4-4x^2+18x 2) (x - 3)(2x + 1) = 2x ^ 2 - 6x + x - 3
3) (4a-7b)(5a+6b)=20a^2-9a6-426^2
4) (y+2)(y^2+y-8)=y^3+y^2-8y+2y^2+2y-16
вроде бы так.
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Answers & Comments
Ответ
3. 4x 12 - 12x = 0
4x * (x - 3) = 0
4x = 0 или x - 3 = 0
x = 0 или x = 3
2.1) 5a^2-20ab=5a(a-46) 2) 7x^3-14x^5-7x^3(1-2x^2)
3) 3a-3b+ax-bx=3(a-6)+x(a-6)=(3+x)(a-6)
) 3x(x^3-4x+6)=3x^4-4x^2+18x 2) (x - 3)(2x + 1) = 2x ^ 2 - 6x + x - 3
3) (4a-7b)(5a+6b)=20a^2-9a6-426^2
4) (y+2)(y^2+y-8)=y^3+y^2-8y+2y^2+2y-16
вроде бы так.