Question

determine as raizes das equacoes do 2° grau 4x²+11x-3=0

Answer 1

X=-b±√∆/2a formula de baskhara
4x²+11x-3=0
a=4
b=11
c=-3
∆=b²-4ac
∆=(11)²-4*4*(-3)
∆=121+48
∆=169

x=-11±√169/2*4
x=-11±13/8
x1=-11-13/8
x1=-24/8
x1=-3

x2=-11+13/8
x2=2/8
x2=1/4

S={-3,1/4}