Question

equaçao de 2 grau $x^{2} -6x+9=0$

Answer 1

x² -6x +9 = 0

(x -3)² = 0

x -3 = 0

x = 3 ✓

Answer 2

$delta = {( - 6)}^{2} - 4.1.9 \\ \\ delta = {36}^{} - 36 \\ \\ delta = 0 \\ \\ \frac{ - ( - 6) + - \sqrt{0} }{2.1} \\ \\ \frac{ 6 + - 0 }{2} \\ \\ {x}^{.} = \frac{6 + 0}{2} = 3 \\ \\ {x}^{..} = \frac{6 - 0}{2} = 3$