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21;2.5
6*x^5-13*x^4+22*x^3-15*x^2-21*x+58;2*x^2-x+7
4.83;0.7
(1/3)*pi*((x^3)/6.25)
0.14;0.007
| 16=0.4 | | 4x-11=-9 | | 4X+7X+19=3*12-4+(5*16)-8 | | 6(3-x)-2=2(4-5x)+4x | | -5(r-3)=-20+2r | | 54x^2-36x-30=0 | | 7e-1=7(e-3) | | 3(16z+20)= | | 60x=40(x+5) | | 9*4y-5*4y=35 | | tg^3x+4tgx=-3 | | 60x=40(p+5) | | 7x^3+21x^2-7x-21=0 | | 28y^2=21y^4 | | 3x+2(4x+12)=90 | | 42x^2+84x+42=0 | | 4y-2=3y+5 | | 1.23y-3.4=2.67y-.23 | | 190/250 | | 3x+x=8.8 | | (3a^2)(4a^6)=12a | | -1/4a=2 | | 28+11x+20x+1=180 | | 68x^2-5x-3=0 | | Y+12x=455 | | 81=3v^2+9 | | 3x+6=3x+1 | | 7x-22=-7x+4 | | s^2+32s=0 | | 0=7y^2-56 | | x^5+y^5-16y^2=0 | | x^2+3=57 |