7х+4 (х-2)>6(1+3х)
7х+4х-8>6+18х
7х+4х-18х>6+8
-7х>14
х>-2
(9*8+12):(4+2)=14
9*8=72
72+12=84
4+2=6
84:6=14
35:(5+2)*(12-4)+16=56
5+2=7
35:7=5
12-4=8
5*8=40
40+16=56
X^4-(2x-3)^2=0
(x^2-2x+3)(x^2+2x-3)=0
x^2-2x+3=0 и <span>x^2+2x-3=0
</span>x=1
x=-3
ответ
1;-3