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1650;6700
{root[2][2]}
x^2+16 > 0;x
x
670000;80
350000;6400
| 20h-19h=13 | | n-5+6n+2= | | ((X^2)/(.200-2x))=.0169 | | P=2.5c-800 | | 3=-4x+b | | 2x-7=(8x-47-[3x-14])/2 | | -40+5b=20 | | 2v-14=-2 | | -40+5b=40 | | 3r-6=15 | | -(1+7x-x)=36 | | 2x+5=3(3x+4) | | 19=7-(a+8) | | -2y+-3=7 | | 4x^2-21=-8x | | s/2-2=1 | | 4sin^2-5=-4 | | x+9.01=-12.6 | | 14x+1=21 | | 10r^2-20r=30 | | 5+2c=-3 | | 7v^2+54v=81 | | 5(5/3) | | -3b^2=-225 | | u/11=7/13 | | 9b^2+15b-4=0 | | 12-3x+12=9 | | n^2+16n+29=-10n | | 4x+20=-x | | 7=3+2u | | 12+2n=-4 | | 3(x+2)-8=5(x-4)+4 |