( ( Х + 1 ) / 2 ) - 3 = ( Х - 1 ) / 3
3( Х + 1 ) - 3•6 = 2( Х - 1 )
3х + 3 - 18 = 2х - 2
3х - 2х = - 2 + 15
Х = 13
1) (0,5x^2)^2
2) (7a^3)^2
3) (2mn^2)^2
4) (0,2a^3b^2)^2
Б) a^2+1-6a+4
a^2-6a+5
D=36-4*1*5=16
<span>√D=8
x1= 6+8/2=7
x2=6-8/2=-1</span>
2,274,9000тыс 2)16,675,4000 3)6500000000 4) 25:100