Question

1)х^2-3х-108=0
2)х^2+х-110=0
3)132х^2-247х+115=0
4)0.2х^2+3х-20=0
решите плиззз!!!

Answer 1

1)х^2-3х-108=0
а=1 b=-3 c=-180
D=(-3)^2 - 4 * 1 * (-180) = 9 + 720 = 729
Х1=3+27/2=15
Х2=3-27/2=-24/2=-12