Question

3x² - 5x = 0 em fórmula de bhaskara

Answer 1

Resposta:

x={0, 5/3}

Explicação passo-a-passo:

$x = \frac{ - b± \sqrt{ {b}^{2} - 4ac} }{2a} \\ x = \frac{ - ( - 5)± \sqrt{ {( - 5)}^{2} - 4 \times 3 \times 0} }{2 \times 3} \\ x = \frac{5± \sqrt{25} }{6} \\ x = \frac{5±5}{6} \\ x’ = \frac{5 + 5}{6} = \frac{10}{6} = \frac{5}{3} \\ x’’ = \frac{5 - 5}{6} = \frac{0}{6} = 0$

Bons estudos!

Answer 2

3x² - 5x = 0
x.(3x - 5)= 0
x = 0

3x - 5 = 0
3x = 5
x = 5/3

3x² - 5x = 0
a = 3; b = - 5; c = 0
/\= b^2 - 4ac
/\= (-5)^2 - 4.3.0
/\= 25

x = (- b +/- \/ /\)/2a
X = [-(-5) +/- \/25]/ 2.3
x = [5 +/- 5]/6
X' = (5-5)/6= 0/6= 0
X " = (5+5)/6= 10/6 (:2)/(:2)= 5/3

R.:
S = {0, 5/3}