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(x^4-(3*x^2))/((x^2-1)^2)
x^4-((3*x^2)/((x^2-1)^2))
sin(16*x)
sin((3.14*x)/4)
x^4-x^3+1;x^2-1
| A=2CD+2CB | | 113+28+x=180 | | 4m-5m-7+10=-7 | | 18x-9=12x-27 | | 12x+9+x=-6x-15 | | 11x-(7+6x)= | | 3(x-7)+3=-18 | | 6x-9+11=2744 | | (7x^2y-10xy)+(7x^2y-2xy)= | | 49-L=65 | | 4x-(6x+1)=x+20 | | 30x-15=5x+35 | | 12x+8y=60 | | 64/7= | | 98=7(5-3x) | | 15s^2-s-2=0 | | (19+3x)=101 | | -4.2x=31.5+65.1 | | 3b-2/3=b-1/9 | | -5.5x=0.56+-1.64 | | (4x-60)=(30-x) | | 9-4(a+6)= | | 90+17+x=90 | | 4(3x-3)-11(x-2)= | | 3+6x=8x+11 | | 5.9/x=8.1/2.8 | | 18=5a-2 | | x+88+x+43=115 | | y=0-4.5 | | 6y-18=6x-12 | | 0=-x-4.5 | | 2x+423=941 |