Question

qual vai ser o x1 e o x2 destas equaçao. ×(ao quadrado) -5x-6=0?

Answer 1

x² - 5x - 6 = 0

x = 5 + - √25 + 24 / 2

x = 5 + - √49 /2

x' = 5 + 7 /2  →   x' = 6

x" = 5 - 7 /2  →  x" =  - 1

Answer 2

x² - 5x - 6 = 0

Δ = b² - 4ac

Δ = (-5)² - 4(1)(-6)

Δ = 25 + 24

Δ = 49

x = -b + √Δ / 2a

x1 = 5 + 7/2

x1 = 6

x2 = 5 - 7/2

x2 = -1