Question

Y=2x²-6x
bhaskara por favor <3

Answer 1

2x²-6x=0                  
x(2x-6)=0

X1=0     e          

X2=> 2x-6=0
2X=6
X=6/2
X=3

X1= 0          e      X2= 3

Answer 2

y = 2x² - 6x
0 = 2x² - 6x
2x² - 6x = 0
x(2x - 6) = 0
x = 0

2x - 6 = 0
2x = 6
x = 6/2
x =3

R.: x = 0 e x = 3

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Báscara:

2x² - 6x = 0
a = 2; b = - 6; c = 0

Δ = b²  - 4ac
Δ = (-6)² - 4.2.0
Δ = 36 - 8.0
Δ = 36 - 0
Δ = 36

x = - b +/- √Δ      =  - (-6) +/- √36
      ---------------       ---------------------- 
            2a                        2.2

x = 6 + 6
      -------- = 12/4 = 3
         4

x = 6 - 6
      --------  = 0/4 = 0
         4

R.: x = 3 e x = 0