Question

Me ajudemmmmmmmmmmm Pfv

Answer 1

kwkwjsjsnskwkwkwkskwkwkw

Answer 2

Resposta:

1)

a=1

b=-5

c=4

∆=9

2)

a=1

b=-2

c=-3

∆=16

3)

a=1

b=8

c=16

∆=0

4)

a)=3

b)-7

c)=2

∆=25

Explicação passo-a-passo:

Boa tarde, tudo bem?

1) b²-4ac

(-5)²-4•1•4

25-16

9

2) b²-4ac

(-2)²-4•1(-3)

4+12

16

3) b²-4ac

8²-4•1•16

64-64

0

4) b²-4ac

(-7)²-4•3•2

49-24

25