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1/x+1/(x^2)+1/(x^3)
1/(x^3)
2*cos(x^3)
2-(4*(2*x-5)) = 3*(x+7);x
x
(27)^(-1)
| 21(r+19)=672 | | 3r+7(2r+4s)= | | 0-7x=-5 | | 3(-2d+3)=-6d+12 | | 6/7=2/3x | | =13h+4 | | 0.5m=cm | | 3-2(3r-1)=4 | | 4x^2-4x-35=y | | (X+5)(x-a)=x^2 | | 24r^2+44r-140r=0 | | 27x=8(3x+6) | | 8p-11=4p+9 | | 2d=d | | 4n-4p=7(2n+2) | | 10x-4y+16=0 | | 3c+6=3c-12 | | 3x+7x-5=5x-4x | | 3q-16q=7+2(-8w-3) | | 2+2x-5=5(x+3)1 | | f(x)=-9x^2+1 | | 4+8=2q-2 | | 17=3(t+1)-4y | | 224=10x(x+8) | | 4/5×-4=6 | | -4x-10y=20 | | 92t=92 | | 184=2x^2+x-28 | | 25=10x-5x-15 | | y=-0.5x^2-4x-10 | | -8+-1x=-3x | | 12m-6m+5=17 |