Question

me ajudem por nessa x2 – 3x = 0

Answer 1

$x = \frac{-b \pm \sqrt{b^2 -4*a*c}}{2*a} \\ \\ 2x^2 -3x = 0$

a=2, b=-3, c=0

Δ=b2−4ac
Δ=(−3)2−4*(2)*(0)
Δ=9+0
Δ=9

$x = \frac{-b \pm \sqrt{\triangle}}{2*a} \\ \\ x = \frac{-(-3) \pm \sqrt{9}}{2*2} \\ \\ x = \frac{3 \pm 3}{4} \\ \\ x' = \frac{3 + 3}{4} \\ \\ x' = \frac{ 6}{4} \\ \\ x' = \frac{ 3}{2} \\ \\ \\ x'' = \frac{3 - 3}{4} \\ \\ x'' = \frac{0}{4} \\ \\ x'' = 0$

S = {$\frac{ 3}{2} , 0$}