Question

Х^2-37х+146,25=0 пж

Answer 1

$x^{2}-37x+146,25=0$
$D=b^{2}-4ac=-37^{2}-4*1*146,25=1369-585=784$
$x_{1}=\frac{-b+\sqrt{D}}{2a}=\frac{-(-37)+\sqrt{784}}{2}=\frac{37+28}{2}=\frac{65}{2}=32,5$
$x_{1}=\frac{-b-\sqrt{D}}{2a}=\frac{-(-37)-\sqrt{784}}{2}=\frac{37-28}{2}=\frac{9}{2}=4,5$

Answer 2

X1＝4.5
x2＝32.5
Вот так)