s-2+3=15
x-3=11
x(t)=e^(-20/19 t) [0,55 cos(10/19 √186 t)+0,18sen(10/19 √186 t)]-0,05 cos(4πt)+0,0125sen(4πt)
(2n+1)(3n+2)
(p-1)(p+10)
(x+2)(x-2)
(𝑥 − 2)2 + 12 = 20
8560.8+35670=
7.8/6
309w^3-3000w=48000
