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2;9;5;6;1;0
2*x^2-x+1 = 0;x
x
(x^4)/4-((x^3)/3)-x^2
2;5;3;4;2;0
(-x)^2-(2*x)-1 = 0;x
x
| 4x^2=-4x+1 | | 19.5=a+24 | | 13x-4=5x+9 | | x-74=-146 | | 8b+9=10 | | 4m-3m+m=8 | | 4+9x-2=9x+23-7x | | 5+nab+4=10 | | 1.5x-8=1 | | K/8=18 | | 3/2x-8=1 | | R/7-5=1 | | 4(x-5)-4(9x-9)=14 | | S/3-5=3 | | 7u-3=-59 | | 2x+31=5x-8 | | 4x^2+4y^2=32y-16x-80 | | 5x+15y+10=25 | | 5y+15x+10=25 | | 5x+3y-7x-4y= | | 9(x-1)=-3(3-x) | | 9x=6y-9 | | 10÷3x=1/9 | | y+6.7=1-0.2x | | 5(x+7)-3(3x-5)=19 | | 3(2x-1)=2(x+4)+1 | | 3x+14=-35+4x | | 9b-40=41 | | 44=14-2m | | 6x+16=6x-16 | | 7x+5(8-y)-2= | | 2/3x-5=5/6 |