Question

encontre o valor delta
1)x²-2x+10=0
2)-2x²+3x+4=0
3)x²-3x-10=0

Answer 1

1) Δ =2² - 4.1.10
    Δ = 4 - 40
    Δ = -36

2) Δ = 3² - 4  . -2 . 4
    Δ = 9 - 32
    Δ = 41.

3) Δ = 3² - 4 .1 . -10
    Δ = 9 + 40
    Δ = 49

Answer 2

1) delta = b² - 4.a.c
= -2² - 4.1.10
=4 - 40
= -36

2) = 3² - 4.-2.4
= 9 - 8.4
= 9 + 32
= 41

3) = -3² - 4. -2.4
= 9 + 40
= 49