Question

Resolva a equacao do 2 grau X2-6x+9=0

Answer 1

x² - 6x + 9 = 0

bhaskara:
b² - 4ac
-6² -4.1.9
36 - 36
delta = 0

x = -b +/- √Δ / 2a
x = -(-6) +/- √0 / 2.1
x = 6 +/- 0 /2
x = 3 +/- 0

x1 = 3+0 = 3
x2 = 3-0 = 3

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