Question

Решите уравнение
9х^2-4х-2=0

Answer 1

9x^2-4х-2=0
Д=16+72=88=$sqrt{4*22} =2 sqrt{22}$
х1=(4-$(2 sqrt{22} )/18$=(2-$sqrt{22} )/9$
x2=(4+$(2 sqrt{22} )/18$=(2+$sqrt{22} )/9$