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x^2+4*x+1
x^2+4*x+1/(x^2)
(4)^(5)
5;20;4;8;0;0
(4)^(5)
| 27=t^2+6t | | f(2x-1)=7-3x | | 3-2(x-4)=8-3 | | 48*3b= | | 7z+9=3 | | -3y=-5y+22 | | Y^2+14=15y | | Y^2+14=15 | | 13x+5y=0 | | 2y+50=7y | | 2x/5-3x/10=1 | | 3/w=w-2/3 | | 5.5+0.01x=0.3x | | 0.3x+0.7x=0.7 | | 3x^2-135x-750=0 | | 0.2y-0.7y=8 | | 5-(-9-7s)=7 | | 11x+13=37 | | 6xz=24 | | (9+11)+x=43 | | 6*z=24 | | 20-y=9 | | (zy)+x=x | | (z*y)+x=x | | 4X+15+6X+5=180 | | 5xy(5x-1)+3=17 | | 4X+15+6X+5=100 | | 4X+5+4X+5+90=180 | | 4-15+12= | | 2x^2+22x-96=0 | | 14y=-25 | | 4x=5y+9 |