8^11 : 4^17= (2*4)^11 : 4^17=(2^11*4^11)/ (4^17) = 2^11/4^6 = 2^11/ (2^2)^6 = 2^11/2^12 = 1/2
Е)
х=6+у
4(6+у)-у-3=0
24+4у-у-3=0
3у+21=0
3у=-21
у=-7
х=6-7=-1
(-1;-7)
1. x^2-2x+9x-18-(x^2-4x+4)>0
x^2-2x+9x-18-x^2+4x-4>0
11x-22>0
11x>22
x>2
2. (5-x)(5+x)+x^2-10x+25>0
25-x^2+x^2-10x+25>0
50-10x>0
-10x>-50
x<5
(3у-2)*(у^2-у+1)
3у^3-3у^3+3у-2у^2+2у-2
3у^3-5у^2+5у-2