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(x^2+4)/((x^2+4)^2)
65;4;3;2;0;0
1;2;0;0;4;7
((-x)^2+4)/((x^2+4)^2)
25;1;185;4;0;0
| 7(2x+9)+10y=36 | | 25+2x+y=90 | | 18=10b | | 32x+48=70x-294 | | 6(w-4)-3w=-15 | | 2(16y+7)-9y=14 | | -7-25= | | 8y+7(y+7)=-26 | | 8(1-2x)=104 | | 279=80-u | | 17y=24+9y | | 9y-1=6-2 | | -32=5(x-8)+3x | | 4y-12=2 | | 2x+23=3x-4 | | (6x+2)+(-7x+1)= | | -3(3x-4)=x-8 | | 5x-3=t | | -6w-4(2x-5w)+3x= | | 218=140-y | | ((2x+1)(2x+1))-((2x-1)(2x-1))=208 | | -39=1-8v | | 28=14x+8(x+14) | | 4x+2+34=180 | | 33+x=5*x+13 | | 4x+4x+2x+2x=180 | | -13(14x+12)+11x=-15 | | -3x+2(2x+6)=-10 | | 186=123-v | | 6y+2=-34 | | 4(w-7)-7w=-13 | | -106=9n+2(n+13) |