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x^3*9.4^x
7*3^x
ln(2/(1-x))
3*8*(1/2)
2*sin(x)*cos(x)
| 5t^5-35t^4+50t^3= | | 4(5u-7)-20(u-7)=u-3(u+10) | | -16=4/11x | | 5(x-1)-(1-x)=2(x-1)-4(1-x) | | 2^×=1/128 | | 7x-9-4x=4x-1 | | r^2-16r+28= | | 1/12x60/1 | | 11x-8-6x=6x-3 | | sinx=1.129 | | 3m+6.2=11.3 | | -10(p+3)+2(5p+7)=p-(4p+4) | | x^3-4x^2-6x-3=0 | | (3x+4)-(-4-2)= | | -v=7 | | x^4-4x^3-2x^2-4x-3=0 | | Sin(4x+30)=cos(-2x+54) | | 10v-10=9v-9 | | 10u+28-2(2u-4)=1+7(u+5) | | 6=3/5× | | 2(2+x)-(6-7x)=13x-(1+4x) | | 5+.7=-2 | | 5u/8=40 | | 2x+12+4x+2=360 | | 3y^2+20y+17=0 | | 20x^3-15x^2+12x-9= | | 3y^2+20y+17=o | | 7/2v=14 | | 10v-2=9v-9 | | 2p+0.5=1.5 | | e=-1.25x^2+4x | | 2x=1.666666667 |