-1/3х²+3 = х²+3х
<span>-1/3х²+3 - х²-3х = 0
</span>-1 1/3х²-3х+3 = 0
4\3х²+3х-3 = 0
D = 9+4*4/3*3 = 144 (12)
х1 = (-3+12):8/3 = 9*3/8
х1 = 27/8 = 3 3/8
х2 = (-3-12)*3/8 = -15*3/8
х2 = -45/8 = -5 5/8
<em>5x+3y=-12 ∫ · 2</em>
<em>-2x+4y=10 ∫ · 5</em>
Х(2у-z)=2yx-xz
как то так
<span>(х+2)²=(х-4)²
x</span>²+4x+4=x²-8x+16
4x+4=-8x+16
4x+8x=16-4
12x=12
x=12:12
x=1