Question

Formula Bhaskara :

x²=x+12 ( resultado dá -3,4)

Answer 1

x² - x - 12 = 0
Delta = b² - 4ac
Delta = 1 - 4(1)(-12)
Delta = 1 + 48
Delta = 49

X = (-b +- raiz delta) / 2a
X = (1 +- 7) / 2
x' = 8/2 = 4
x" = -6/2 = -3

Answer 2

   

x²=x+12

x² - x - 12 = 0
 

Δ = (-1)² - 4.1.(-12) = 1+48 = 49                     V49 = 7
 

x = 1+/-7  ==> x1 = 4   e x2 = - 3
         2