826
![1) x^{3} +5 x^{2} = x^{2} (x+5)](https://tex.z-dn.net/?f=1%29++x%5E%7B3%7D+%2B5+x%5E%7B2%7D+%3D+x%5E%7B2%7D+%28x%2B5%29)
2) a^4-a^3=a^3(a-1)
![3) 2 b^{4} + b^{5} = b^{4} (2+b)](https://tex.z-dn.net/?f=3%29+2+b%5E%7B4%7D+%2B+b%5E%7B5%7D+%3D+b%5E%7B4%7D+%282%2Bb%29)
4) 3c^4-c^7=c^4(3-c^3)
5) 5x^2+10x^3=4x^2(1+2x)
6) 7z^6-5z^4=z^4(7z^2-5)
7) 3t^2-9t^4=3t^2(1-3t^2)
8) 4m^3-12m^7=4m^3(1-3m^4)
9) -8n^5-20n^3=-4n^3(2n^2+5)
827
1)16a-24b=8(2a-3b)
2) 18x+12y=6(3x+2y)
3) 12mn-8mk=4m(3n-2k)
4) 14yz-7z=7z(2y-1)
5) a^5-a^2=a^2(a^3-1)
6) b^4+b^7=b^4(1+B3)
![7) 48 x^{3} -32 x^{2} =16 x^{2} (3x-2)](https://tex.z-dn.net/?f=7%29+48+x%5E%7B3%7D+-32+x%5E%7B2%7D+%3D16+x%5E%7B2%7D+%283x-2%29)
8) 27a^3b-18a^4=9a^3(3b-2a)
9) 10x^5y^4-15x^4y^5=5x^4y^4(2x-3y)
828
1) a^4-2a^2+7a=a(a^2-2a+7)
2) -2y^-8y^4-6y^2=-2y^2(y^4+4y^2+3)
3) 3x^5+5x^3-x^2= x^2(3x^3+5x-1)
4) 7x^4-21x^3-35x=7x(x^3-3x^2-5)
-7<3x<7
-7/3<x<7/3 2-ое 2x-3>5
2x-3<-5 или 2х>8, 2x<-2 или x>4, x<-1.
-5 3/20-x=3 1/8
x=-5 3/20-3 1/8
x=-8 6+5/40
x=-8 11/40
Меньше. Меньше
Больше. Меньше
Равно. Меньше