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3.14*(1/2)*x*(a^2-b^2)^(1/2)
(1/x)*(a^2-b^2)^(1/2)
1*x^3+12*x^2+39*x+28 = 0;x
x
862.4;2.8
1*x^3-(2*x^2)+1*x-2 = 0;x
x
| 4x-(8/x^3) | | 22-4.1(x)= | | 3y=2/5 | | 7w/3=28 | | 3p^2-8p=60 | | 32x+6.5x+y=180 | | 9v(v)(v)=-45v(v) | | 50=0.24*x | | 6x-3x+4-2x=9x+4 | | 4x+(4x-6)=2 | | f(12)=(12*12)(-14*12)+49 | | Y=26.5t-4.5t^2 | | 6x-3x+4-2x=10x+2 | | 50=0.21*x | | 0.3(n-45)=0.4-0.2(n-7) | | 9y+14x=24y+4x | | 4x+27=3x-14 | | Y=-4x-3x^2+4 | | 6x-3x+4-2x=4x+7 | | 1/3x-11=6 | | e^3x+5=15 | | v-9/10v=6=11 | | 6x-3x+4-2x=2x+3 | | (p-8)=(2p-58) | | 9+5x=4x-1 | | -9x-21=-6x-36 | | y=52.7x+1514 | | -48+48x=336 | | 21/100x28 | | w(w)-144=0 | | 6x-3x+4-2x=2x+1 | | 1/6x=21/8 |