Question

equação 2 grau com bhaskara 5x^2+13x-6=0

Answer 1

5x² +13x -6 = 0

a = 5
b= 13
c = -6

Δ = b² -4 .a .c 

Δ = 13² -4 . 5 . (-6)
Δ = 169 -20 . (-6)
Δ = 169 + 120
Δ = 289

-b +- √Δ    /2.a
-13 +- √ 289   /2 .5
-13 +- 17  /  10

x' = -13 + 17  / 10
x' = 4 / 10     ÷2
x' = 2/5

x" = -13 - 17  / 10
x" = -30  / 10
x" = -3

Resposta : S{ 2/5   e  -3 }