1) (х² - 4) * -3а(х - 2) = (х-2)*(х+2) -3а(х-2) = (х-2)(х+2-3а)
2) (х+3) (х² - 3х + 9)
3) (х-2) (х² - 2х + 8)
3) (х-3)(х+3) -3а( х-3) = (х-3)(х+3-3а)
4) (х+1)*(х+4)
X+1.2+x=16.8
2x+1.2=6.8
2x=5.6
x=2.8
2.8+1.2=3
А)(3а-4ах+2)-(11а-14ах)=3а-4ах+2-11а+14ах=-8а+10ах+2
Б)3
![y^{2}](https://tex.z-dn.net/?f=%20y%5E%7B2%7D%20%20)
(
![y^{3}](https://tex.z-dn.net/?f=%20y%5E%7B3%7D%20)
+1))=3
![y^{5}](https://tex.z-dn.net/?f=%20y%5E%7B5%7D)
+3
![y^{2}](https://tex.z-dn.net/?f=%20y%5E%7B2%7D%20)
F`(x)=(2√x+1)`*x²+(x²)`*(2√x+1)=2/2√x*x²+2x*(2√x+1)=x√x+4x√x+2x=
=5x√x+2x
(х+1)² = 4х
х²+2х+1-4х=0
х²-2х+1=0
(х-1)²=0
х=1