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x in (-oo:+oo)
z^2-(((5*i)/2)*z)-1 = 0
z^2+(-5/2)*i*z-1 = 0
z^2-5/2*i*z-1 = 0
x należy do R
x in (-oo:+oo)
| 21+7h=3h | | -4n-8=12n+8 | | 2x^2+1x+6x+3=0 | | 4m^2-16=-12m | | 85=1/3*3.14*r^2*9 | | .66+5=20-1 | | Y^2-24x=144 | | 9d(d-8)=0 | | -9+(-5)+(-3)=x | | 4z^2+60w-175=0 | | -6x-32=2m | | 5x+20=9x+-92 | | -42n-18=276 | | 16x+2=10x+1 | | 2(x+3)+1=3 | | 16*4x=32 | | 4(6x+2)=-136 | | 12*4x=36 | | 5(1+4v)=-115 | | 34*4x=42 | | 34x*4=41 | | X^2+1x+1x+1=0 | | 2x-y=67 | | 9x^2+25y^2-54x-250y+225=0 | | -9(w+7)=8w+39 | | 51/3+91/2+131/6= | | 5sinx+-12cosx=13 | | 4(X+1)+3x=25 | | http://media.education2020.com/evresources/645-07-04-00-00_files/i0090000.jpg | | 24x/7=34 | | 502=3.14*16*h | | 4(2x+2)=8x+2 |