Question

Equação de 2 grau
${x }^{2} - 20 {x}^{} + 3 = 0$

Answer 1

-(-2) ± √ -2² -4. 1.3
------------------------------
2.1

2± √ -4 -12
-------------------
2

X = √ 2 ± 16
------------
2

x = √ 2 + 16 18
-------------- = -------- = 9
2 2

x = √ 2-16 -14
----------- = -------- = - 7
2 2