Question

resolva a equação de 2 grau incompleta a seguir.

9x^2-3x=0

Answer 1

9x² - 3x = 0

x = -(-3)+-√(-3)²/2.9

x = 3 +- √9/18

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

x" = 3 - 3/18 = 0

Answer 2

9x² - 3x = 0

3x • (3x - 1) = 0

x= 0

9x - 3= 0

9x = 3

x= 3/9(÷3)

x= 1/3

S= ( 0 , 1/3)