Resposta :
2 grau x²+6x-16=0
delta=6²-4.1.-16
delta=36+64
delta=100
x=--b+raiz de delta/2a
x1=-6+10/2
x1=4/2
x1=2
x2=-6-10/2
x2=-8
P
prontinho querida.
delta=6²-4.1.-16
delta=36+64
delta=100
x=--b+raiz de delta/2a
x1=-6+10/2
x1=4/2
x1=2
x2=-6-10/2
x2=-8
P
prontinho querida.
delta = 6^2 - 4.1(-16)==> 36+64 = 100
x = -6 +/-V100 ==> x = - 6 +/- 10
2.1 2.1
x1= - 6 + 10 ==> x1 = 2
2
x2= - 6 - 10 ==> x2 = - 8
2