Question

Resolva cada equação do 2 grau
A)1÷2x=0 B)x+9x=0

C)6x+7x=0 D)-4x+1=0


E)-x+5=0

Answer 1

A) 1:2x=0
    0,5x=0
delta=b²-4.a.c
delta=0,5²-4.0.0
delta=0,25

B) x+9x=0
    10x=0
delta=b²-4.a.c
delta=10²-4.0.0
delta=100

C) 6x+7x=0
    13x=0
delta=b²-4.a.c
delta=13²-4.0.0
delta=169

D) -4x+1=0
delta=b²-4.a.c
delta=(-4)²-4.0.1
delta=16

E) -x+5=0
delta=b²-4.a.c
delta=(-1)²-4.0.5
delta=1