Question

9x²-24x+4=0
Me ajudem, preciso por bascara e delta

Answer 1

9x² - 24x + 4 = 0

bhaskara:

Δ = b² - 4ac
Δ = -24² - 4.9.4
Δ = 576 - 144
Δ = 432

x = -b +/- √Δ / 2a
x = -(-24) +/- √432 / 2.9
x = 24 +/- √432 / 18

Fatora 432
432 / 2
216 / 2
108 / 2
54 / 2
27 / 3
9 / 3
3 / 3
1

x = 24 +/- √432 / 18
x = 24 +/- √2².2².3².3 / 18
x = 24 +/- 2.2.3√3 / 18
x = 24 +/- 12√3 / 18                    simplifica por 6
x = 4 +/- 2√3 / 3

x1 = 4+2√3/3
x2 = 4-2√3/3

Bons estudos