Question

Quais são as raizes da equação 9x elevado a 2 + 9x + 2 = 0​

Answer 1

9ײ+9×+2=0

∆=9²-4.9.2

∆=81-72

∆=9

×=-9±3/18

×'=-9+3=-6/18 :6=-1/3

×"= -9-3=-12/18 :6= -2/3

Answer 2

9x² + 9x + 2

∆ = 9² - 4 9 2

∆ = 81 - 72

∆ = 9

- (9) ± √9 / 2.9

-9 ± 3 / 18

x' = -9+3/18 = -6/18 = -1/3

x" = -9-3/18 = -12/18 = -2/3