9% of 93
5/(2x+3)=1/5
x+z=3
2a+x-3=0
2a+5y+z=0
x-2y-3a=0
8×-5=3×+10
solve x+y+z=15,2x+2y+z=10,x-y-z=-9 by elimination
∫_0^1▒1/(x^2+3x-2)=
Si n^n=4,calcula n^(n^(〖n+1〗^(〖n+2〗^(〖n+3〗^(n+8) ) ) ) )
(3x^2 -10x +8)/(x^2 -5x +6)
(x^-1/4)/(x^3/4)
98-99
