Question

2ײ-8×=0 resolva as equações do 2 grau

Answer 1

a=2 b= -8 c=0
delta=b²-4.a.c
delta= (-8)²-4.2.0
64-0=64

x=-b+-raiz de delta/2.a
x=-(-8)+-8/2.2

x'=8+8/4= 16/4=4
x''=8-8/4=0/4=0