Question

Usando o fórmula resolutiva (Bhaskara) resolva
X²+12X+36=0

Answer 1

b²-4ac 

12²-4(1)(36)
144-4(36)
144-144
0

Delta = 0

x= -12 +/- 0
--------------------
           2  

x1 = -12/2 = -6

x2= -12/2 = -6

A resposta é -6

Answer 2

x² + 12x + 36 = 0

a = 1
b = 12
c = 36


x' =  -b ± √b² - 4ac / 2a 
x' = -12 ± √12² - 4 * 1 * 36 / 2 * 1 
x' = -12 ±  √144 - 144 / 2 
x' = -12 + 0 / 2
x' -12/2
x' = -6


x" = -12-0/2
x" = -12/2
x" = -6