1) 3х^2 + 8х - 3 = 3( Х - ( 1/3 ))( x + 3 ) = ( 3x - 1 )( x + 3 )
D = 64 + 36 = 100 = 10^2
X1 = ( - 8 + 10 ) : 6 = 1/3
X2 = ( - 8 - 10 ) : 6 = - 3
2) x^2 + 3x = x( x + 3 )
3) ( ( 3x - 1 )( x + 3 )) : ( x( x + 3 )) = ( 3x - 1 ) / x
2(4х-3)^2+48х
2(16х^2 -24х+9) +48х
32^2-48х+18+48х
<span>32^2+ 18</span>
X3y = x2y2
3y = y2x
2y = 2x
x=y