Question

resolva a equação do 2 grau x2 - 10x +25 =0

Answer 1

x² - 10x + 25 = 0

Delta = b² - 4ac
Delta = (-10)² - 4(1)(25)
Delta = 100 - 100
Delta = zero

X = (-b +- raiz delta) / 2a
X = (10 +- 0) / 2
x' = (10 + 0) / 2 = 10/2 = 5
x" = (10 - 0) / 2 = 10/2 = 5