Question

Me ajudem por favor!!!!!!!!!!!!!!!!!!!!!!!!
2x²=5x

Answer 1

$2x^2 = 5x$
$2x^2 - 5x =0$
Δ=$5^2 - 4.2.0 = 25$
$x = \frac{- (-5) +- \sqrt{25} }{4}$
$x_{1} = \frac{5+5}{4} = 2,5$
$x_{2} = \frac{5 - 5}{4} = 0$
$S = (0;2,5)$

Answer 2

2x^2=5x
2x^2-5x=0

a=2; b=-5 c=0
P=c/a
P=0/2
P=0
S=-b/a
S=-(-5)/2
S=5/2

x1*x2=0
x1+x2=5/2 ,logo
x1=0
x2=5/2