Ответы на вопрос:
а.
7.mx-m=m(x-1)
9.-2a-5ab=-a(2+5b)
11.7ab+7ac7a(b+c)
13.-15ax-20ay=-5a(3x+4y)
15.a^2+15a=a(a+15)
17.x^3+x^2=x(x²+x)
19.x^4-x^3=x³(x-1)
21.3x^2-6x^3=3x²(1-2x)
23.ax+bx+cx=x(a+b+c)
25.5x-15xy+10ax=5x(1-3y+2a)
б.
1.6z^4-12z^6=6z⁴(1-2z²)
3.x^2y-xy^2=xy(x-y)
5.a^3b^2+a^2b^3=a²b²(a+b)
7.4x^3y^3-8x^2y^2=4x²y²(xy-2)
9.5xy^2-10x^3y^4=5xy²(1-2x²y²)
11.3ab+9ac-12ad=3a(b+3c-4d)
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