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(cos(x))^9
(x^4-(4*x^3))/2 = (x^5-(6*x^3))/3;x
x
x^6+x = 2*x^4+x;x
x
(-x)^5+4*x^3 = 0;x
x
1440/282
| -4(x-3)=-3(x+4) | | K^2+5k+28=0 | | x+3x-21=7 | | 3x-9y=-30 | | 3x+1.5(1)=-1.5 | | 4y(3y-1)/7=-7 | | 34=2(x-3)+11 | | 7(x+5)+4=-17 | | 3(1.5)+1.5y=-1.5 | | 6(w+3)=42 | | .4x=-15 | | x^2=-12-7x | | -20-4=-m+2m | | Tan(42)=20/x | | 39+6x-4x=3x+4 | | 60r-50=17r-7 | | T+T-19=53 | | 2/3(x-7) | | 4y+2(y-4)=6y-2(y-10) | | 2/11÷8 | | -(9-t)=-15 | | -x^2-24=8 | | -3x-7+x=8x+20-7x | | -14-3r-5r=2r+6 | | 36y^2-y=0 | | 10m-12=11m+16 | | 36y^3-7=0 | | -3x^2+2=29 | | (2n+1)(2n+1)= | | 7s-1=8s+4 | | q-7/4=2.25 | | 4(3X-5)-2=4(4-2)+42 |